Match the new name of the dictionary settings activity.

Bug: 5094660
Change-Id: I13c734791265ed25eac3c9b4861dd0cffdb12c52
diff --git a/java/res/xml/prefs.xml b/java/res/xml/prefs.xml
index babbfaa..8ccb46f 100644
--- a/java/res/xml/prefs.xml
+++ b/java/res/xml/prefs.xml
@@ -73,7 +73,7 @@
            <intent
               android:action="android.intent.action.MAIN"
               android:targetPackage="com.google.android.inputmethod.latin.dictionarypack"
-              android:targetClass="com.google.android.inputmethod.latin.dictionarypack.DictionarySettings" />
+              android:targetClass="com.google.android.inputmethod.latin.dictionarypack.DictionarySettingsActivity" />
         </PreferenceScreen>
         <ListPreference
             android:key="auto_correction_threshold"