drm/connector: fix a kernel-doc bad line warning

Building the kernel documentation causes this warning 7 times.
Fix it by adding a " *" line instead of a blank line.

drivers/gpu/drm/drm_connector.c:1849: warning: bad line:

Fixes: 7d63cd85 ("drm/connector: Add TV standard property")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Maxime Ripard <maxime@cerno.tech>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
CC: Thomas Zimmermann <tzimmermann@suse.de>
Cc: David Airlie <airlied@gmail.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
Reviewed-by: Simon Ser <contact@emersion.fr>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20230117070224.30751-1-rdunlap@infradead.org

drivers/gpu/drm/drm_connector.c

@@ -1846,7 +1846,7 @@ EXPORT_SYMBOL(drm_mode_create_tv_properties_legacy);
  * drm_mode_create_tv_properties - create TV specific connector properties
  * @dev: DRM device
  * @supported_tv_modes: Bitmask of TV modes supported (See DRM_MODE_TV_MODE_*)
-
+ *
  * Called by a driver's TV initialization routine, this function creates
  * the TV specific connector properties for a given device.
  *