Add language tags to the new language prerelease note needles

Signed-off-by: Adam Williamson <awilliam@redhat.com>

needles/anaconda/identification/arabic/prerelease_note-arabic-20190828.json

@@ -10,6 +10,7 @@
   ],
   "properties": [],
   "tags": [
+    "LANGUAGE-arabic",
     "prerelease_note"
   ]
-}
+}

needles/anaconda/identification/french/prerelease_note-french-20190828.json

@@ -10,6 +10,7 @@
   ],
   "properties": [],
   "tags": [
+    "LANGUAGE-french",
     "prerelease_note"
   ]
-}
+}

needles/anaconda/identification/japanese/prerelease_note-japanese-20190828.json

@@ -10,6 +10,7 @@
   ],
   "properties": [],
   "tags": [
+    "LANGUAGE-japanese",
     "prerelease_note"
   ]
-}
+}

needles/anaconda/identification/japanese/prerelease_note-japanese-blue-20190828.json

@@ -10,6 +10,7 @@
   ],
   "properties": [],
   "tags": [
+    "LANGUAGE-japanese",
     "prerelease_note"
   ]
-}
+}

needles/anaconda/identification/russian/prerelease_note-russian-20190828.json

@@ -10,6 +10,7 @@
   ],
   "properties": [],
   "tags": [
+    "LANGUAGE-russian",
     "prerelease_note"
   ]
-}
+}