AIDL IRadioModemIndication#onImeiMappingChanged() implementation for the change in the IMEI wrt sim slot

Bug: 294127356
Test: Built successfully
Change-Id: I6c6b65378005f99948891a2f00675bcbc7690eed
diff --git a/telephony/java/com/android/internal/telephony/RILConstants.java b/telephony/java/com/android/internal/telephony/RILConstants.java
index a20f26c..f56347f 100644
--- a/telephony/java/com/android/internal/telephony/RILConstants.java
+++ b/telephony/java/com/android/internal/telephony/RILConstants.java
@@ -618,4 +618,5 @@
     int RIL_UNSOL_TRIGGER_IMS_DEREGISTRATION = 1107;
     int RIL_UNSOL_CONNECTION_SETUP_FAILURE = 1108;
     int RIL_UNSOL_NOTIFY_ANBR = 1109;
+    int RIL_UNSOL_IMEI_MAPPING_CHANGED = 1110;
 }