Update handover failed constant name.

Update the name of the emergency call handover failure cause.

Bug: 74831393
Test: Manual
Merged-In: Iac9c4562ac20b793fcea4fd38783e446892bef4d
Change-Id: Iac9c4562ac20b793fcea4fd38783e446892bef4d
(cherry picked from commit 46719f1afe482114790e19179925b65ada86f386)
diff --git a/src/com/android/server/telecom/CallsManager.java b/src/com/android/server/telecom/CallsManager.java
index 7db4bd2..14b662c 100644
--- a/src/com/android/server/telecom/CallsManager.java
+++ b/src/com/android/server/telecom/CallsManager.java
@@ -3436,7 +3436,7 @@
         // Send an error back if there are any ongoing emergency calls.
         if (hasEmergencyCall()) {
             handoverFromCall.onHandoverFailed(
-                    android.telecom.Call.Callback.HANDOVER_FAILURE_ONGOING_EMERG_CALL);
+                    android.telecom.Call.Callback.HANDOVER_FAILURE_ONGOING_EMERGENCY_CALL);
             return;
         }