legacy: bta: Properly include stack/include/bt_hdr am: 62701515 am:...

legacy: bta: Properly include stack/include/bt_hdr am: 62701515 am: e10da89e am: c2245b83 am: 7fb0e724

Original change: https://android-review.googlesource.com/c/platform/system/bt/+/1831595

Change-Id: I3e2fd2276ce789b60b001c99e6046ab37561c786