Add string conversion support for RIL_UNSOL_EMERGENCY_NUMBER_LIST

Add string conversion support for UNSOL event
RIL_UNSOL_EMERGENCY_NUMBER_LIST by adding the entry in responseToString function.

Bug: 140972715
Test: manual, verify in logs whether the event info is captured.
Change-Id: Ie6fcab499bbdfef6eb05a2d55415ef2f7024f23c
diff --git a/src/java/com/android/internal/telephony/RIL.java b/src/java/com/android/internal/telephony/RIL.java
index 4d7a687..c293a09 100644
--- a/src/java/com/android/internal/telephony/RIL.java
+++ b/src/java/com/android/internal/telephony/RIL.java
@@ -5671,6 +5671,8 @@
                 return "RIL_UNSOL_KEEPALIVE_STATUS";
             case RIL_UNSOL_PHYSICAL_CHANNEL_CONFIG:
                 return "RIL_UNSOL_PHYSICAL_CHANNEL_CONFIG";
+            case RIL_UNSOL_EMERGENCY_NUMBER_LIST:
+                return "RIL_UNSOL_EMERGENCY_NUMBER_LIST";
             default:
                 return "<unknown response>";
         }