drm/i915/display/intel_display_debugfs: Fix incorrect param naming for 'intel_connector'

Fixes the following W=1 kernel build warning(s):

 drivers/gpu/drm/i915/display/intel_display_debugfs.c:1668: warning: Function parameter or member 'intel_connector' not described in 'intel_connector_debugfs_add'
 drivers/gpu/drm/i915/display/intel_display_debugfs.c:1668: warning: Excess function parameter 'connector' description in 'intel_connector_debugfs_add'

Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Cc: David Airlie <airlied@gmail.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: intel-gfx@lists.freedesktop.org
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Lee Jones <lee@kernel.org>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230331092607.700644-5-lee@kernel.org

drivers/gpu/drm/i915/display/intel_display_debugfs.c

@@ -1470,7 +1470,7 @@ DEFINE_SHOW_ATTRIBUTE(intel_crtc_pipe);
 
 /**
  * intel_connector_debugfs_add - add i915 specific connector debugfs files
- * @connector: pointer to a registered drm_connector
+ * @intel_connector: pointer to a registered drm_connector
  *
  * Cleanup will be done by drm_connector_unregister() through a call to
  * drm_debugfs_connector_remove().