drm/i915: Pass intel_connector to intel_vrr_is_capable()

Pass intel_connector instead of drm_connector to
intel_vrr_is_capable(). Will result in less ugly casts.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220510104242.6099-2-ville.syrjala@linux.intel.com


Reviewed-by: Jani Nikula <jani.nikula@intel.com>