legacy: test: Properly include stack/include/bt_hdr am: 4c2aede9 am:...

legacy: test: Properly include stack/include/bt_hdr am: 4c2aede9 am: fa7d78d3 am: d4b5ab7b am: e6c8fdca

Original change: https://android-review.googlesource.com/c/platform/system/bt/+/1831603

Change-Id: Iee2f9dd5deb9e025a8dc23b47826c30c3b8ead2d