Allow audioserver to access persist.log.tag

Bug: 113756665
Test: adb shell getprop shows
persist.log.tag.APM_AudioPolicyManager

Change-Id: Id9363718a14c797de3fa146d2d0c34ee860bcdb6
diff --git a/private/audioserver.te b/private/audioserver.te
index 09a0a97..445413e 100644
--- a/private/audioserver.te
+++ b/private/audioserver.te
@@ -67,6 +67,9 @@
   allow audioserver su:unix_stream_socket { read write };
 ')
 
+# Allow write access to log tag property
+set_prop(audioserver, log_tag_prop);
+
 ###
 ### neverallow rules
 ###