SELinux policy for users of libcutils klog_write.

klog_write/init create /dev/__kmsg__ backed by a kernel character
device, keep the file descriptor, and then immediately unlink the
file.

Change-Id: I729d224347a003eaca29299d216a53c99cc3197c
diff --git a/file_contexts b/file_contexts
index 15f9f59..19491f9 100644
--- a/file_contexts
+++ b/file_contexts
@@ -114,6 +114,7 @@
 /dev/watchdog		u:object_r:watchdog_device:s0
 /dev/xt_qtaguid	u:object_r:qtaguid_device:s0
 /dev/zero		u:object_r:zero_device:s0
+/dev/__kmsg__		u:object_r:klog_device:s0
 /dev/__properties__ u:object_r:properties_device:s0
 #############################
 # System files