DO NOT MERGE Change to add STK_PERMISSION for stk related commands.

Bug: 21697171
Change-Id: I7649c7341428194963ac74e9ae622dfa76ea738b

Author: Amit Mahajan

core/res/AndroidManifest.xml

@@ -1333,6 +1333,11 @@
                 android:description="@string/permdesc_control_incall_experience"
                 android:label="@string/permlab_control_incall_experience" />
 
+    <!-- Allows an application to receive STK related commands.
+         @hide -->
+    <permission android:name="android.permission.RECEIVE_STK_COMMANDS"
+        android:protectionLevel="system|signature" />
+
     <!-- ================================== -->
     <!-- Permissions for sdcard interaction -->
     <!-- ================================== -->