rfnoc: graph: Lock release/commit state

Property propagation and action handling depend on the release state,
but they are lengthy operations. It is therefore imperative to not
change the release/commit state during those methods.

This commit changes the following:
- Change the release state counter from an atomic to a non-atomic
  variable
- Instead, use a mutex to lock the release state counter, and use the
  same mutex for locking access to the property propagation and action
  handling

The rfnoc_graph now tries to release the graph before shutting down
blocks to make sure they don't get destroyed while those algorithms are
still running.

0 files changed, 0 insertions, 0 deletions