drm/i915/overlay: Adjust i915 specific interfaces
Adjust the names ("i915_overlay_" prefix) and calling
convention (pass the driver agnostic 'struct drm_device'()
of the functions that will provide the remainder of the
parent driver interface to be used by the overlay display
code.
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patch.msgid.link/20260226100738.29997-14-ville.syrjala@linux.intel.com