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: 72242910
Test: Manual; TestTracker/148125
Change-Id: I1981a78bece10b8e516f218d3edde8b77943d130
(cherry picked from commit e8cfac90e8bf14466b6431a21bc5ccd4bf6ca3ea)
diff --git a/public/hal_audio.te b/public/hal_audio.te
index 08cc1ff..8d9d932 100644
--- a/public/hal_audio.te
+++ b/public/hal_audio.te
@@ -9,8 +9,8 @@
 
 r_dir_file(hal_audio, proc)
 r_dir_file(hal_audio, proc_asound)
-allow hal_audio audio_device:dir r_dir_perms;
-allow hal_audio audio_device:chr_file rw_file_perms;
+allow hal_audio_server audio_device:dir r_dir_perms;
+allow hal_audio_server audio_device:chr_file rw_file_perms;
 
 # Needed to provide debug dump output via dumpsys' pipes.
 allow hal_audio shell:fd use;