Settings Provider: post notifications permission

so the package can send notifications on T+

Bug: 194833441
Change-Id: I973ef85f15bc5088a32a42f197fd5a81726639d3

packages/SettingsProvider/AndroidManifest.xml

@@ -3,6 +3,8 @@
         coreApp="true"
         android:sharedUserId="android.uid.system">
 
+    <uses-permission android:name="android.permission.POST_NOTIFICATIONS" />
+
     <application android:allowClearUserData="false"
                  android:label="@string/app_label"
                  android:process="system"