test: Should not reset global btm_interface structure am: 9e80dd18 am: b086244f am: 19447d70

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Bluetooth/+/2798238



Change-Id: Ia8895f45322824cb1f4056ef33a7578382cbb9c0
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>