Activate Mongolian l10n

(cherry picked from commit ecf2a85e766daf4c9b30b76444c28f0816316f70)
Signed-off-by: Christophe Mutricy <xtophe@videolan.org>

NEWS

@@ -286,6 +286,8 @@ Video output:
 Miscellaneous:
  * Invmem, a fake codec to display images from external applications
 
+New Localization:
+ * Mongolian
 
 Changes between 0.9.9 and 0.9.9a:
 ---------------------------------

po/LINGUAS

@@ -29,6 +29,7 @@ km
 ko
 lt
 lv
+mn
 ms
 my
 ne

src/libvlc-module.c

@@ -68,6 +68,7 @@ static const char *const ppsz_language[] =
     "it",
     "ja",
     "ko",
+    "mn",
     "ms",
     "km",
     "oc",
@@ -113,6 +114,7 @@ static const char *const ppsz_language_text[] =
     "Italiano",
     "日本語",
     "한국어",
+    "Монгол хэл"
     "Melayu",
     "ភាសាខ្មែរ",
     "Occitan",