Support more keys accessibility mode

Bug: 12491371
Change-Id: Ib1fc8affbccfbaca3424ecdc2812f47047106aa2
diff --git a/java/res/values/strings-talkback-descriptions.xml b/java/res/values/strings-talkback-descriptions.xml
index fa06362..09cc088 100644
--- a/java/res/values/strings-talkback-descriptions.xml
+++ b/java/res/values/strings-talkback-descriptions.xml
@@ -139,4 +139,9 @@
     <string name="spoken_symbol_unknown">Unknown symbol</string>
     <!-- Spoken description for unknown emoji code point. -->
     <string name="spoken_emoji_unknown">Unknown emoji</string>
+
+    <!-- Spoken descriptions when opening a more keys keyboard that has alternative characters. -->
+    <string name="spoken_open_more_keys_keyboard">Alternative characters are available</string>
+    <!-- Spoken descriptions when closing a more keys keyboard that has alternative characters. -->
+    <string name="spoken_close_more_keys_keyboard">Alternative characters are dismissed</string>
 </resources>