legacy: Explicitly include stack/include/bt_device_type am: 6d0141ed am:...

legacy: Explicitly include stack/include/bt_device_type am: 6d0141ed am: 7b9ac6ca am: 75d0b597 am: 0c8add6b

Original change: https://android-review.googlesource.com/c/platform/system/bt/+/1825219

Change-Id: I9de33bb9809966e2e8df36822169bfe182f71d1a