drm/i915: Generalize planes_{enabling,disabling}()

I want to use the same logic that planes_{enabling,disabling}()
are using for other features as well. Generlize the thing
into a pair of macros.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230320203352.19515-2-ville.syrjala@linux.intel.com


Reviewed-by: Mitul Golani <mitulkumar.ajitkumar.golani@intel.com>