lang: enable support for romanian lang (#6869)

Co-authored-by: Marius Bardan <marius.bardan@8x8.com>

react/features/base/i18n/BuiltinLanguages.native.js

         main: require('../../../../lang/main-sc')
     },
 
+    // Romanian
+    'ro': {
+        languages: require('../../../../lang/languages-ro'),
+        main: require('../../../../lang/main-ro')
+    },
+
     // Russian
     'ru': {
         languages: require('../../../../lang/languages-ru'),