audio HAL: SELinux changes for Spatial Audio optimization

Add CAP_SYS_NICE.
Reduce glitches caused by core migration.
Reduce power consumption as Spatializer Effect is DSP compute bound.

Test: instrumented
Test: adb shell 'uclampset -a -p $(pgrep -of android.hardware.audio.service)'
Test: adb shell cat "/proc/$(adb shell pgrep -of android.hardware.audio.service)/status"
Test: adb shell 'ps -Tl -p $(pgrep -of android.hardware.audio.service)'
Bug: 181148259
Bug: 260918856
Bug: 261228892
Bug: 261686532
Bug: 262803152
Ignore-AOSP-First: tm-qpr-dev fix, will move to AOSP afterwards.
Merged-In: Id5f052116834034a9e4fd5c3adf17d3d7ef6610a
Change-Id: Id5f052116834034a9e4fd5c3adf17d3d7ef6610a
diff --git a/public/hal_audio.te b/public/hal_audio.te
index 52caa00..aabc884 100644
--- a/public/hal_audio.te
+++ b/public/hal_audio.te
@@ -23,6 +23,9 @@
 # Needed to allow sound trigger hal to access shared memory from apps.
 allow hal_audio_server appdomain:fd use;
 
+# allow self to set scheduler (and allows Binder RT PI)
+allow hal_audio_server self:global_capability_class_set sys_nice;
+
 # allow hal audio to use vnbinder
 vndbinder_use(hal_audio)