hal_audio: Allow writing dump info into pipes when capturing BR am: 9686cbcd...

hal_audio: Allow writing dump info into pipes when capturing BR am: 9686cbcd am: 4aac6fdb am: b00a85c3
am: da694ced

Change-Id: I49f744a649467f812b441081ea83fcbbae948f23

public/hal_audio.te

@@ -20,6 +20,8 @@ allow hal_audio audio_device:chr_file rw_file_perms;
 # Needed to provide debug dump output via dumpsys' pipes.
 allow hal_audio shell:fd use;
 allow hal_audio shell:fifo_file write;
+allow hal_audio dumpstate:fd use;
+allow hal_audio dumpstate:fifo_file write;
 
 ###
 ### neverallow rules