drm/connector: fix all kernel-doc warnings

Clean up all of the kernel-doc issues in drm_connector.c:

drivers/gpu/drm/drm_connector.c:2611: warning: Excess function parameter 'connector' description in 'drm_connector_oob_hotplug_event'
drivers/gpu/drm/drm_connector.c:2611: warning: Function parameter or member 'connector_fwnode' not described in 'drm_connector_oob_hotplug_event'

drm_connector.c:630: warning: No description found for return value of 'drm_get_connector_status_name'
drm_connector.c:715: warning: No description found for return value of 'drm_connector_list_iter_next'
drm_connector.c:785: warning: No description found for return value of 'drm_get_subpixel_order_name'
drm_connector.c:816: warning: No description found for return value of 'drm_display_info_set_bus_formats'
drm_connector.c:1331: warning: No description found for return value of 'drm_mode_create_dvi_i_properties'
drm_connector.c:1412: warning: No description found for return value of 'drm_connector_attach_content_type_property'
drm_connector.c:1492: warning: No description found for return value of 'drm_mode_create_tv_margin_properties'
drm_connector.c:1534: warning: No description found for return value of 'drm_mode_create_tv_properties'
drm_connector.c:1627: warning: No description found for return value of 'drm_mode_create_scaling_mode_property'
drm_connector.c:1944: warning: No description found for return value of 'drm_mode_create_suggested_offset_properties'

drm_connector.c:2315: warning: missing initial short description on line:
 * drm_connector_set_panel_orientation_with_quirk -

[The last warning listed is probably a quirk/bug in scripts/kernel-doc.]

Fixes: 613051da ("drm: locking&new iterators for connector_list")
Fixes: 52217195 ("drm: Extract drm_connector.[hc]")
Fixes: b3c6c8bf ("drm: document drm_display_info")
Fixes: 50525c33 ("drm: content-type property for HDMI connector")
Fixes: 6c4f52dc ("drm/connector: Allow creation of margin props alone")
Fixes: 69654c63 ("drm/connector: Split out orientation quirk detection (v2)")
Fixes: 72ad4968

 ("drm/connector: Add support for out-of-band hotplug notification (v3)")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
Cc: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Derek Basehore <dbasehore@chromium.org>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20211010224459.3603-1-rdunlap@infradead.org