Rename reg/unreg OnSubscriptionsChangedListener.

To addOnSubscriptionsChangedListener and
removeOnSubscriptionsChangedListener.

Bug: 18984103
Change-Id: I6636905093812af89c1c3702840e44c8c5ea891f
diff --git a/services/core/java/com/android/server/TelephonyRegistry.java b/services/core/java/com/android/server/TelephonyRegistry.java
index 72c2eaf..8d7a182 100644
--- a/services/core/java/com/android/server/TelephonyRegistry.java
+++ b/services/core/java/com/android/server/TelephonyRegistry.java
@@ -338,7 +338,7 @@
     }
 
     @Override
-    public void registerOnSubscriptionsChangedListener(String pkgForDebug,
+    public void addOnSubscriptionsChangedListener(String pkgForDebug,
             IOnSubscriptionsChangedListener callback) {
         int callerUid = UserHandle.getCallingUserId();
         int myUid = UserHandle.myUserId();
@@ -393,7 +393,7 @@
     }
 
     @Override
-    public void unregisterOnSubscriptionsChangedListener(String pkgForDebug,
+    public void removeOnSubscriptionsChangedListener(String pkgForDebug,
             IOnSubscriptionsChangedListener callback) {
         if (DBG) log("listen oscl: Unregister");
         remove(callback.asBinder());