add post_notification permission to manifest
so the package can send notifications on T+

Bug: 194833441
Change-Id: I6395389f778460b84a2a8f351ffafb30b2df3b11
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 81ba3d8..6b841ce 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -31,6 +31,7 @@
     <uses-permission android:name="android.permission.USER_ACTIVITY" />
     <uses-permission android:name="android.permission.VIBRATE" />
     <uses-permission android:name="android.permission.WAKE_LOCK" />
+    <uses-permission android:name="android.permission.POST_NOTIFICATIONS" />
 
     <application android:icon="@drawable/ic_launcher_sim_toolkit"
         android:label="@string/app_name"