selinux: New aocx service

Add new aocxd server domain
- Allow aocxd to access AOC resources
- Add new aocx binder vendor service

Allow audio hal to find and talk to aocx

avc error tcontext=u:object_r:binder_device:s0 tclass=chr_file or tcontext=u:object_r:vndbinder_device:s0 tclass=chr_file

avc:  denied  { add } for pid=1073 uid=0 name=aocx.IAocx scontext=u:r:aocxd:s0 tcontext=u:object_r:aocx:s0 tclass=service_manager

avc:  denied  { call } for  scontext=u:r:hal_audio_default:s0 tcontext=u:r:aocxd:s0 tclass=binder

BUG: 315853303
Change-Id: Ide16a2be9f032bef60f43d4d3daa6372ae06b057
diff --git a/aoc/sepolicy/vndservice_contexts b/aoc/sepolicy/vndservice_contexts
new file mode 100644
index 0000000..de31e51
--- /dev/null
+++ b/aoc/sepolicy/vndservice_contexts
@@ -0,0 +1 @@
+aocx.IAocx    u:object_r:aocx:s0