bta: Update legacy bta::discovery tests am: 070ce385 am: 468da810 am: 0125308d

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Bluetooth/+/2825177



Change-Id: I49899755a43285f4a6c09e51c7b0471371f1badb
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>