[Flagging Addition] Add Flagging feature for Telephony Analytics Enabling

 - Add enable_telephony_analytics flag to control TelephonyAnalytics Feature

Bug: 309896524
Test: atest FrameworkTelephonyTests and CtsTelephonyTestCases
Change-Id: I61c5deb48496ad41e722ed3fc7f4ce72f00c4fcc
diff --git a/flags/misc.aconfig b/flags/misc.aconfig
index deda579..159d462 100644
--- a/flags/misc.aconfig
+++ b/flags/misc.aconfig
@@ -56,3 +56,10 @@
   description: "Load default data subid on create in PhoneGlobals."
   bug: "310591561"
 }
+
+flag {
+  name: "enable_telephony_analytics"
+  namespace: "telephony"
+  description: "Enable Telephony Analytics information of Service State , Sms and Call scenarios"
+  bug: "309896524"
+}