Bulk Update Request: yet more language descriptions

Script

change category baybayin_description (0) -> meta
change category icelandic_description (0) -> meta
change category mongolian_description (0) -> meta
change category turkish_description (0) -> meta
change category latvian_description (0) -> meta
change category catalan_description (0) -> meta
change category hiligaynon_description (0) -> meta
change category devanagari_description (0) -> meta
change category luxembourgish_description (0) -> meta
change category tamil_description (0) -> meta
change category walloon_description (0) -> meta
change category xhosa_description (0) -> meta
change category khmer_description (0) -> meta