Make F1 and Symbol keys static in XML file

Change-Id: If869f5ad4fe8f192f89a8679a4abde99a25e02e6
diff --git a/java/res/values/attrs.xml b/java/res/values/attrs.xml
index 2087115..7de41f0 100644
--- a/java/res/values/attrs.xml
+++ b/java/res/values/attrs.xml
@@ -149,7 +149,8 @@
             <enum name="web" value="4" />
             <enum name="phone" value="5" />
         </attr>
-        <attr name="settingsKey" format="string" />
-        <attr name="voiceKey" format="string" />
+        <attr name="hasSettingsKey" format="string" />
+        <attr name="voiceKeyEnabled" format="string" />
+        <attr name="hasVoiceKey" format="string" />
     </declare-styleable>
 </resources>