Use carrier config API entrypoint

This was originally commit 52a93ff69cb87ee2ab7e75a2d3d64dcf502b4096

Bug: 21990447
Bug: 21878236
Change-Id: I98706af11b2a860892d2dc45d0426905ef0b6290
diff --git a/src/com/android/phone/PhoneGlobals.java b/src/com/android/phone/PhoneGlobals.java
index eb9ea15..4fca2ea 100644
--- a/src/com/android/phone/PhoneGlobals.java
+++ b/src/com/android/phone/PhoneGlobals.java
@@ -513,11 +513,11 @@
         return mCM;
     }
 
-    /* package */ PersistableBundle getCarrierConfig() {
+    public PersistableBundle getCarrierConfig() {
         return getCarrierConfigForSubId(SubscriptionManager.getDefaultSubId());
     }
 
-    /* package */ PersistableBundle getCarrierConfigForSubId(int subId) {
+    public PersistableBundle getCarrierConfigForSubId(int subId) {
         return configLoader.getConfigForSubId(subId);
     }