Add WRITE_SYNC_SETTINGS permission to Contacts App.

For contact metadata sync settings, WRITE_SYNC_SETTINGS permission
is required.

BUG 26491409

Change-Id: I758a28460f23e3cfeea39778aeb4bd5e0a4e1024
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index e5d3427..887d8ab 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -47,6 +47,8 @@
     <uses-permission android:name="android.permission.READ_SMS" />
     <uses-permission android:name="android.permission.READ_CALENDAR" />
     <uses-permission android:name="com.android.voicemail.permission.READ_VOICEMAIL" />
+    <!-- Following used for Contact metadata syncing -->
+    <uses-permission android:name="android.permission.WRITE_SYNC_SETTINGS" />
 
     <application
         android:name="com.android.contacts.ContactsApplication"