drm/colorop: Add destroy helper for colorop objects

drm/colorop: Add destroy helper for colorop objects

Add a helper that performs common cleanup and frees the
associated object. This can be used by drivers if they do not
require any driver-specific teardown.

v2:
- Add function documentation only before definition (Jani)

Signed-off-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Reviewed-by: Alex Hung <alex.hung@amd.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Link: https://patch.msgid.link/20260202094202.2871478-2-chaitanya.kumar.borah@intel.com