Add BluetoothHeadsetBinderTest

FYI, code were modified because of the difference
between aosp and tm-qpr-dev made by aosp/2194763.

Bug: 237467631
Test: atest BluetoothInstrumentationTests:BluetoothHeadsetBinderTest
Change-Id: Ib89637f3ef272af35db9e201d74900738fb8c5fc
Merged-In: Ib89637f3ef272af35db9e201d74900738fb8c5fc
(cherry picked from commit d01fe327)