Activate Vietnamese translation

THANKS

@@ -32,6 +32,7 @@ Andrew Zaikin <andrew dot zaikin at gmail dot com> - Config saving fixes
 Andrey Brilevskiy <director at macwest.ru> - Russian translation
 Andrey Wolk <andywolk at  gmail . com> - Russian translation
 Andy Lindsay <andy_vl at ananam.com> - fixes in the TS demux
+Anh Phan <ppanhh at gmail d0t com> - Vietnamese translation
 Animesh Swar <animesh_swar@hotmail.co.uk> - Nepalese translation
 Anthony Loiseau <anthony.loiseau at gmail dot com> - Various fixes
 Antoine Lejeune - Maemo port

po/LINGUAS

@@ -53,5 +53,6 @@ th
 tl
 tr
 uk
+vi
 zh_CN
 zh_TW

src/libvlc-module.c

@@ -87,6 +87,7 @@ static const char *const ppsz_language[] =
     "sv",
     "tr",
     "uk",
+    "vi",
 };
 
 static const char *const ppsz_language_text[] =
@@ -133,6 +134,7 @@ static const char *const ppsz_language_text[] =
     "Svenska",
     "Türkçe",
     "украї́нська мо́ва",
+    "tiếng Việt",
 };
 #endif