rfnoc: ddc: Make scaling optional, prefer to change decim

This combines two intertwined changes:
- The scaling_in and scaling_out properties of the DDC now start off
  uninitialized. This is to avoid invalid loops of property resolution:
  When the block is first initialized in a graph context, the default
  values for scaling over-constrain the resolution problem.
- The resolver for samp_rate_in used to prefer changing samp_rate_out,
  it now prefers to modify the decimation. This is necessary to allow
  calling set_output_rate() before the graph is committed.

0 files changed, 0 insertions, 0 deletions