IMS: Add APIs to support RTT UI

- Added APIs to set/get RTT call type
- Added APIs to set/get RTT operating
  mode
- Added APIs to query if RTT merge is
  supported

Change-Id: Id8cb2d47467627cd686a8fdf8cdbd739bcff4b78
CRs-Fixed: 2828959
2 files changed
tree: 2e62effce3d5d5c9c3227b5834d5eaa8a349d3d2
  1. ims/
  2. internal/
  3. qti-hidl-wrapper/
  4. qti-utils/