[Why]
Instead of calculating CRC on whole frame, add flexibility to calculate
CRC on specific frame region.

[How]
Add few crc window coordinate properties. By default, CRC is calculated
on whole frame unless user space specifies the CRC calculation window.
Signed-off-by: Wayne Lin <Wayne.Lin@amd.com>
Acked-by: Bindu Ramamurthy <bindu.r@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>