Update sepolicy for audio hal

The rules in audioserver are in fact for the hal code
which run as hal_audio in binderized hal mode.

Bug: 33818663
Change-Id: I0c8a12575eb8571f9af6e796b6f92f27e41d0e32
diff --git a/sepolicy/hal_audio.te b/sepolicy/hal_audio.te
new file mode 100644
index 0000000..b8a1de0
--- /dev/null
+++ b/sepolicy/hal_audio.te
@@ -0,0 +1,7 @@
+unix_socket_connect(hal_audio, thermal, thermal-engine)
+
+# allow communication w/perfd
+allow hal_audio perfd_data_file:dir search;
+allow hal_audio perfd_data_file:sock_file write;
+allow hal_audio perfd:unix_dgram_socket sendto;
+allow hal_audio perfd:unix_stream_socket connectto;