Only turn on radio for exact-match emergency numbers.

This change matches the old, correct behavior from kitkat.

Bug: 21650423
Change-Id: Iad2651e86cea1c0c6cdb8ce63c5c223932412386
diff --git a/src/com/android/services/telephony/TelephonyConnectionService.java b/src/com/android/services/telephony/TelephonyConnectionService.java
index 72c9b07..5848135 100644
--- a/src/com/android/services/telephony/TelephonyConnectionService.java
+++ b/src/com/android/services/telephony/TelephonyConnectionService.java
@@ -171,7 +171,7 @@
             }
         }
 
-        boolean isEmergencyNumber = PhoneNumberUtils.isPotentialEmergencyNumber(number);
+        boolean isEmergencyNumber = PhoneNumberUtils.isLocalEmergencyNumber(this, number);
 
         // Get the right phone object from the account data passed in.
         final Phone phone = getPhoneForAccount(request.getAccountHandle(), isEmergencyNumber);