Allow the Bluetooth HAL to log firmware versions

Give the default implementation access to /data/misc/blue* for
backward compatibility.

Future Bluetooth HAL implementations should use the system log.

Test: VTS tests pass, Bluetooth starts/stops
Change-Id: Ia67896b46e3e9ce3421bbb0c8a8542f290b39083

private/hal_bluetooth_default.te

@@ -8,3 +8,7 @@ init_daemon_domain(hal_bluetooth_default)
 userdebug_or_eng(`
   allow hal_bluetooth_default self:capability net_admin;
 ')
+
+# Logging for backward compatibility
+allow hal_bluetooth_default bluetooth_data_file:dir ra_dir_perms;
+allow hal_bluetooth_default bluetooth_data_file:file create_file_perms;