Merge tag 'AU_LINUX_ANDROID_KK.04.04.02.010.421' into HEAD

AU_LINUX_ANDROID_KK.04.04.02.010.421 based on quic/aosp/kk

Change-Id: I6756a59936cf76f2a0e6d7892b61737480fd4e0c
tree: 6d39e3410e8097e97674fcdfcc79fb0d94bf8e93
  1. libbt-vendor/
  2. Android.mk
  3. CleanSpec.mk