Merge "BluetoothClass: Use mask to get MajorDeviceClass" am: a9f7570de6 am: 9fa0668d29

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1516221

Change-Id: I9b320189fa9bcfac4f23e2bda4452c399cf75f9d