drm/i915/color: Add helper to create intel colorop

drm/i915/color: Add helper to create intel colorop

Add intel colorop create helper

v2:
 - Make function names consistent (Jani)
 - Remove redundant code related to colorop state
 - Refactor code to separate files

Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com>
Signed-off-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
Signed-off-by: Uma Shankar <uma.shankar@intel.com>
Link: https://patch.msgid.link/20251203085211.3663374-4-uma.shankar@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>