remove broadcom bluetooth & cleanups

Change-Id: I0cd847d09998cb523dfee555ab53fa41454e1df1
remove gps props

Change-Id: I29c40c2f7e2889d85e4a41186445fcd683bb222c
change a2dp sampling rate

Change-Id: I503bfa2c9834f0d9f92144757a64d43f834051d5