Move audio_firmware_file and /data/misc/audio entry to core sepolicy.

Change-Id:  Ib8c96ab9e19d34e8e34a4c859528345763be4906
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>

file.te

@@ -49,6 +49,7 @@ type shell_data_file, file_type, data_file_type;
 # /data/gps
 type gps_data_file, file_type, data_file_type;
 # /data/misc subdirectories
+type audio_firmware_file, file_type, data_file_type;
 type bluetooth_data_file, file_type, data_file_type;
 type keystore_data_file, file_type, data_file_type;
 type vpn_data_file, file_type, data_file_type;

file_contexts

@@ -168,6 +168,7 @@
 /data/tombstones(/.*)?	u:object_r:tombstone_data_file:s0
 /data/local/tmp(/.*)?	u:object_r:shell_data_file:s0
 # Misc data
+/data/misc/audio(/.*)?          u:object_r:audio_firmware_file:s0
 /data/misc/bluetooth(/.*)?	u:object_r:bluetooth_data_file:s0
 /data/misc/bluedroid(/.*)?	u:object_r:bluetooth_data_file:s0
 /data/misc/keystore(/.*)?	u:object_r:keystore_data_file:s0

mediaserver.te

@@ -49,6 +49,10 @@ allow mediaserver system_server:fifo_file r_file_perms;
 allow mediaserver camera_calibration_file:dir r_dir_perms;
 allow mediaserver camera_calibration_file:file r_file_perms;
 
+# Grant access to audio firmware files to mediaserver
+allow mediaserver audio_firmware_file:dir ra_dir_perms;
+allow mediaserver audio_firmware_file:file create_file_perms;
+
 # Read/[write] to /proc/net/xt_qtaguid/ctrl and /dev/xt_qtaguid
 allow mediaserver qtaguid_proc:file rw_file_perms;
 allow mediaserver qtaguid_device:chr_file r_file_perms;