Disable 48.0kHz sampling rate for AAC

Some carkits have issues playing A2DP audio using AAC with 48.0kHz
sampling rate, while playing AAC with 44.1kHz sampling rate is fine.

Bug: 38443632
Bug: 62301376
Test: manual
Change-Id: I50de2db1d5386d41bfe361fbac99fc7ebbbd3640
(cherry picked from commit 8f7a231a)