uhd: mpm: apply clang-format to all files

Applying formatting changes to all .cpp and .hpp files in the following
directories:
```
find host/examples/ -iname *.hpp -o -iname *.cpp | \
    xargs clang-format -i -style=file
find host/tests/ -iname *.hpp -o -iname *.cpp | \
    xargs clang-format -i -style=file
find host/lib/usrp/dboard/neon/ -iname *.hpp -o -iname *.cpp | \
    xargs clang-format -i -style=file
find host/lib/usrp/dboard/magnesium/ -iname *.hpp -o -iname *.cpp | \
    xargs clang-format -i -style=file
find host/lib/usrp/device3/ -iname *.hpp -o -iname *.cpp | \
    xargs clang-format -i -style=file
find host/lib/usrp/mpmd/ -iname *.hpp -o -iname *.cpp | \
    xargs clang-format -i -style=file
find host/lib/usrp/x300/ -iname *.hpp -o -iname *.cpp | \
    xargs clang-format -i -style=file
find host/utils/ -iname *.hpp -o -iname *.cpp | \
    xargs clang-format -i -style=file
find mpm/ -iname *.hpp -o -iname *.cpp | \
    xargs clang-format -i -style=file
```

Also formatted host/include/, except Cpp03 was used as a the language
standard instead of Cpp11.
```
sed -i 's/ Cpp11/ Cpp03/g' .clang-format
find host/include/ -iname *.hpp -o -iname *.cpp | \
    xargs clang-format -i -style=file
```

Formatting style was designated by the .clang-format file.

1 files changed, 31 insertions, 22 deletions

diff --git a/host/tests/gain_group_test.cpp b/host/tests/gain_group_test.cpp
index b8c15b479..2608f292d 100644
--- a/host/tests/gain_group_test.cpp
+++ b/host/tests/gain_group_test.cpp
@@ -5,10 +5,10 @@
 // SPDX-License-Identifier: GPL-3.0-or-later
 //
 
-#include <boost/test/unit_test.hpp>
 #include <uhd/utils/gain_group.hpp>
 #include <boost/bind.hpp>
 #include <boost/math/special_functions/round.hpp>
+#include <boost/test/unit_test.hpp>
 #include <iostream>
 
 #define rint(x) boost::math::iround(x)
@@ -18,56 +18,63 @@ using namespace uhd;
 /***********************************************************************
  * Define gain element classes with needed functions
  **********************************************************************/
-class gain_element1{
+class gain_element1
+{
 public:
-
-    gain_range_t get_range(void){
+    gain_range_t get_range(void)
+    {
         return gain_range_t(0, 90, 1);
     }
 
-    double get_value(void){
+    double get_value(void)
+    {
         return _gain;
     }
 
-    void set_value(double gain){
+    void set_value(double gain)
+    {
         double step = get_range().step();
-        _gain = step*rint(gain/step);
+        _gain       = step * rint(gain / step);
     }
 
 private:
     double _gain;
 };
 
-class gain_element2{
+class gain_element2
+{
 public:
-
-    gain_range_t get_range(void){
+    gain_range_t get_range(void)
+    {
         return gain_range_t(-20, 10, 0.1);
     }
 
-    double get_value(void){
+    double get_value(void)
+    {
         return _gain;
     }
 
-    void set_value(double gain){
+    void set_value(double gain)
+    {
         double step = get_range().step();
-        _gain = step*rint(gain/step);
+        _gain       = step * rint(gain / step);
     }
 
 private:
     double _gain;
 };
 
-//create static instances of gain elements to be shared by the tests
+// create static instances of gain elements to be shared by the tests
 static gain_element1 g1;
 static gain_element2 g2;
 
-static gain_group::sptr get_gain_group(size_t pri1 = 0, size_t pri2 = 0){
-    //create instance of gain group
+static gain_group::sptr get_gain_group(size_t pri1 = 0, size_t pri2 = 0)
+{
+    // create instance of gain group
     gain_fcns_t gain_fcns;
     gain_group::sptr gg(gain_group::make());
 
-    //load gain group with function sets
+    // load gain group with function sets
     gain_fcns.get_range = boost::bind(&gain_element1::get_range, &g1);
     gain_fcns.get_value = boost::bind(&gain_element1::get_value, &g1);
     gain_fcns.set_value = boost::bind(&gain_element1::set_value, &g1, _1);
@@ -86,10 +93,11 @@ static gain_group::sptr get_gain_group(size_t pri1 = 0, size_t pri2 = 0){
  **********************************************************************/
 static const double tolerance = 0.001;
 
-BOOST_AUTO_TEST_CASE(test_gain_group_overall){
+BOOST_AUTO_TEST_CASE(test_gain_group_overall)
+{
     gain_group::sptr gg = get_gain_group();
 
-    //test the overall stuff
+    // test the overall stuff
     gg->set_value(80);
     BOOST_CHECK_CLOSE(gg->get_value(), 80.0, tolerance);
     BOOST_CHECK_CLOSE(gg->get_range().start(), -20.0, tolerance);
@@ -97,16 +105,17 @@ BOOST_AUTO_TEST_CASE(test_gain_group_overall){
     BOOST_CHECK_CLOSE(gg->get_range().step(), 0.1, tolerance);
 }
 
-BOOST_AUTO_TEST_CASE(test_gain_group_priority){
+BOOST_AUTO_TEST_CASE(test_gain_group_priority)
+{
     gain_group::sptr gg = get_gain_group(0, 1);
 
-    //test the overall stuff
+    // test the overall stuff
     gg->set_value(80);
     BOOST_CHECK_CLOSE(gg->get_value(), 80.0, tolerance);
     BOOST_CHECK_CLOSE(gg->get_range().start(), -20.0, tolerance);
     BOOST_CHECK_CLOSE(gg->get_range().stop(), 100.0, tolerance);
     BOOST_CHECK_CLOSE(gg->get_range().step(), 0.1, tolerance);
 
-    //test the the higher priority gain got filled first (gain 2)
+    // test the the higher priority gain got filled first (gain 2)
     BOOST_CHECK_CLOSE(g2.get_value(), g2.get_range().stop(), tolerance);
 }