Add MANAGE_SUBSCRIPTION_PLAN permission

Allow DCT to get SubscriptionPlan info from NetworkPolicyManagerService

Test: atest DcTrackerTest
Bug: 169187737
Change-Id: I61963866fd34f28a3b15f727b5d07c38d6635a75
(cherry picked from commit f133750dccebcc0fbf8b301505ae528b5132a7b8)
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 45642bb..079ab04 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -216,6 +216,7 @@
     <uses-permission android:name="android.permission.START_ACTIVITIES_FROM_BACKGROUND" />
     <uses-permission android:name="android.permission.NETWORK_STATS_PROVIDER" />
     <uses-permission android:name="android.permission.HANDLE_CAR_MODE_CHANGES"/>
+    <uses-permission android:name="android.permission.MANAGE_SUBSCRIPTION_PLANS"/>
 
     <application android:name="PhoneApp"
             android:persistent="true"