libvlc: fix vbi-page initialization without zvbi plugin

A variable cannot be inherited if it is not a configuration item.
Note this only avoids generating an error; VBI cannot work without the
plugin anyway.

(cherry picked from commit 950645c06103a61786ba28155523f609b2da5bdb)

lib/media_player.c

@@ -439,7 +439,8 @@ libvlc_media_player_new( libvlc_instance_t *instance )
     var_Create (mp, "deinterlace", VLC_VAR_INTEGER);
     var_Create (mp, "deinterlace-mode", VLC_VAR_STRING);
 
-    var_Create (mp, "vbi-page", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
+    var_Create (mp, "vbi-page", VLC_VAR_INTEGER);
+    var_SetInteger (mp, "vbi-page", 100);
 
     var_Create (mp, "marq-marquee", VLC_VAR_STRING);
     var_Create (mp, "marq-color", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);