drm/i915: s/icl_load_gcmax/ivb_load_lut_max/

Unify icl_load_gcmax() with the rest of the function
naming scheme by calling it ivb_load_lut_max() instead.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221026113906.10551-5-ville.syrjala@linux.intel.com


Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>