drm/amd/display: add sharpening policy to plane state

drm/amd/display: add sharpening policy to plane state

[Why]
Pass in sharpening policy through plane state from control side

[How]
Add sharpener support through dc_caps.
Add sharpen policy to plane state and move to spl_input.
Pass sharpen policy from plane state to SPL.

Reviewed-by: Aric Cyr <aric.cyr@amd.com>
Signed-off-by: Samson Tam <Samson.Tam@amd.com>
Signed-off-by: Roman Li <roman.li@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>