sdm: Handle CWB when FB resolution changes

- CWB Idlefallback buffer is created once as per FB resolution
  and is not changed when FB resolution changes, leading to
  commit failures. Add support to handle CWB Idlefallback
  buffer reallocation.

- Validate the CWB ROI as per output buffer resolution.

Change-Id: I9242427ef60c8698f4f2cf020b08d34d7dd97fb8
4 files changed