drm/amd/display: Expose DCE110 CRC functions for DCE8

Implement CRC for DCE8. Registers remain the same, so call DCE110 code
directly.

Signed-off-by: Leo (Sunpeng) Li <sunpeng.li@amd.com>
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>