radio: provide hardcoded IMEI and null IMEI-SV

The current values "----" are not expected, setting them
to valid IMEI (15 digits, taking same values as older
version of goldfish radio hal), and setting IMEI SV as
empty.

Bug: 230649354
Test:
launch emulator and check IMEI

Change-Id: I3cfbb5604218c3fe22fb6c1a9f479855c682f00c
Merged-In: I3cfbb5604218c3fe22fb6c1a9f479855c682f00c
(cherry picked from commit 605aaf1471b5281936987ca7249ade81e2979275)
diff --git a/guest/hals/ril/reference-ril/reference-ril.c b/guest/hals/ril/reference-ril/reference-ril.c
index c3452ae..5d17ab4 100644
--- a/guest/hals/ril/reference-ril/reference-ril.c
+++ b/guest/hals/ril/reference-ril/reference-ril.c
@@ -1507,8 +1507,8 @@
     int count = 4;
 
     // Fixed values. TODO: Query modem
-    responseStr[0] = "----";
-    responseStr[1] = "----";
+    responseStr[0] ="358240051111110";
+    responseStr[1] =  "";
     responseStr[2] = "77777777";
     responseStr[3] = ""; // default empty for non-CDMA