Bluetooth A2DP offload: Binder call to audio HAL

Add rule to allow Binder call from Bluetooth process to Bluetooth
audio HIDL interface running in audio HAL service process.

Bug: 63932139
Bug: 72242910
Test: Manual; TestTracker/148125
Change-Id: I1981a78bece10b8e516f218d3edde8b77943d130
(cherry picked from commit e8cfac90e8bf14466b6431a21bc5ccd4bf6ca3ea)
3 files changed