Log the business call composer values if set

This CL adds a new flag to gate the Enriched Calling feature and adds
some logic to log the new business call composer values in the
CallLogProvider.

Bug: 324325516
Bug: 226518586 (root)
Test: CTS
Change-Id: I39fc67fe3e31bd1943c7808b351b1fe6bef43791
diff --git a/flags/telecom_api_flags.aconfig b/flags/telecom_api_flags.aconfig
index 21b83b2..eb2731b 100644
--- a/flags/telecom_api_flags.aconfig
+++ b/flags/telecom_api_flags.aconfig
@@ -21,10 +21,16 @@
   bug: "292597423"
 }
 
-
 flag{
   name: "set_mute_state"
   namespace: "telecom"
   description: "transactional calls need the ability to mute the call audio input"
   bug: "310669304"
 }
+
+flag{
+  name: "business_call_composer"
+  namespace: "telecom"
+  description: "Enables enriched calling features (e.g. Business name will show for a call)"
+  bug: "311688497"
+}