drm/{i915, xe}: pass struct drm_plane_state instead of struct drm_crtc to ->setup

drm/{i915, xe}: pass struct drm_plane_state instead of struct drm_crtc to ->setup

The initial plane parent interface ->setup hook no longer needs the crtc
for anything. Pass the struct drm_plane_state instead.

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patch.msgid.link/c3db101ef5fd13c56cb3a9329adecf521a807abc.1765812266.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>