drm/file: fix client_name_lock kernel-doc warning

It's client_name_lock, not name_lock. Also unify style while at it.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Closes: https://lore.kernel.org/r/20241009172650.29169e6f@canb.auug.org.au
Fixes: 56c594d ("drm: add DRM_SET_CLIENT_NAME ioctl")
Reviewed-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241009140300.1980746-1-jani.nikula@intel.com
Signed-off-by: Christian König <christian.koenig@amd.com>

include/drm/drm_file.h

@@ -395,7 +395,10 @@ struct drm_file {
 	 * Userspace-provided name; useful for accounting and debugging.
 	 */
 	const char *client_name;
-	/** @name_lock: Protects @client_name. */
+
+	/**
+	 * @client_name_lock: Protects @client_name.
+	 */
 	struct mutex client_name_lock;
 };