Indicate high quality audio.

Check remote profile to take into account whether we consider the
session to be using high-quality audio.

Merge two separate blocks to update media capabilities into one
helper method, and simplified code. This helper is
boolean updateMediaCapabilities(ImsCall imsCall).

Bug: 18103173
Change-Id: Iec082dda6ec80bba2ce386f8ee7398f191152a3e