tree 543a3ad1b820166c6a615d3d85e7ea1c3e110c3a
parent 5b5889fc63f8085e0aed7d16e7d7c2259a0d6477
author Hall Liu <hallliu@google.com> 1564442310 -0700
committer Hall Liu <hallliu@google.com> 1570053417 +0000

Add carrier config for allowing merge of RTT calls

Add a carrier config key that specifies whether merging an RTT call is
allowed.

Bug: 136035168
Test: manual

Change-Id: I8cfdf68c69b50abed88d7c835db0480a53755f5a
Merged-In: I8cfdf68c69b50abed88d7c835db0480a53755f5a