Feature flagging for Apn Setting Field API

Bug: 307038091
Test: atest CtsTelephonyTestCases
Change-Id: Ic171fbe10d12343c0373d395e38a8b4a3f9514e1
diff --git a/flags/data.aconfig b/flags/data.aconfig
index 7bfa416..d65dc55 100644
--- a/flags/data.aconfig
+++ b/flags/data.aconfig
@@ -34,3 +34,10 @@
   description: "Support additional slicing error codes and functionality."
   bug: "307378699"
 }
+
+flag {
+  name: "apn_setting_field_support_flag"
+  namespace: "telephony"
+  description: "Expose apn setting supporting field"
+  bug: "307038091"
+}