Revert "remove /dev/log"

This reverts commit 8c60f74dcc045b0566bc7b9bc64cba49bddba1b3.

Bug: 38242876
Change-Id: Iba5a94d16901dc0c52f1941972c26877baa4805c
diff --git a/private/file_contexts b/private/file_contexts
index 713c625..adae7dc 100644
--- a/private/file_contexts
+++ b/private/file_contexts
@@ -91,6 +91,7 @@
 /dev/ion		u:object_r:ion_device:s0
 /dev/keychord   u:object_r:keychord_device:s0
 /dev/kmem		u:object_r:kmem_device:s0
+/dev/log(/.*)?		u:object_r:log_device:s0
 /dev/loop-control	u:object_r:loop_control_device:s0
 /dev/mem		u:object_r:kmem_device:s0
 /dev/modem.*		u:object_r:radio_device:s0