[Feature][YUKUAI_patch]add 18.02 code

Only Configure: No
Affected branch: master
Affected module: unknow
Is it affected on both ZXIC and MTK: only ZXIC
Self-test: Yes
Doc Update: No

Change-Id: I7f71153004f10fc0ea5adfa083866aaeeb1053ac
diff --git a/rootfs/etc/selinux/mls/seusers b/rootfs/etc/selinux/mls/seusers
new file mode 100644
index 0000000..74dd7e8
--- /dev/null
+++ b/rootfs/etc/selinux/mls/seusers
@@ -0,0 +1,2 @@
+root:root:s0-s15:c0.c1023
+__default__:user_u:s0-s0