doc-rst: linux_tv: promote generic documents to the parent dir

The generic error codes and licensing sections are general to the
entire media book. They should not be inside the v4l dir. So,
promote them to the parent directory.

No functional changes.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

Documentation/linux_tv/index.rst

@@ -72,8 +72,8 @@ etc, please mail to:
     media/dvb/dvbapi
     media/rc/remote_controllers
     media/mediactl/media-controller
-    media/v4l/gen-errors
-    media/v4l/fdl-appendix
+    media/gen-errors
+    media/fdl-appendix
 
 .. only:: html