A matching payload type number in an answer might not be enough to
establish compatible codecs. Also check the format parameters. Reject
and ignore answer codecs that are not compatible.
Change-Id: I12a1287216886926ec4b3c704029c923f815b429
(cherry picked from commit 9c00f30475)
(cherry picked from commit 71ff9210ce)
(cherry picked from commit 76bfb0e707)
(cherry picked from commit 9dee54d4c2)