Add flag to expose CarrierConfigs for additional call settings

Guard to expose carrier config KEY_ADDITIONAL_SETTINGS_CALLER_ID_VISIBILITY_BOOL
and KEY_ADDITIONAL_SETTINGS_CALL_WAITING_VISIBILITY_BOOL.

Bug: 310264981
Test: atest FrameworkTelephonyTests and CtsTelephonyTestCases
Change-Id: Ib3fbb5bf1b5f359d312aedb1de89e4afd3009fe0
diff --git a/flags/misc.aconfig b/flags/misc.aconfig
index 159d462..c7140f5 100644
--- a/flags/misc.aconfig
+++ b/flags/misc.aconfig
@@ -63,3 +63,10 @@
   description: "Enable Telephony Analytics information of Service State , Sms and Call scenarios"
   bug: "309896524"
 }
+
+flag {
+  name: "show_call_id_and_call_waiting_in_additional_settings_menu"
+  namespace: "telephony"
+  description: "Expose carrier config KEY_ADDITIONAL_SETTINGS_CALLER_ID_VISIBILITY_BOOL and KEY_ADDITIONAL_SETTINGS_CALL_WAITING_VISIBILITY_BOOL."
+  bug: "310264981"
+}