file_contexts: Change file_contexts to file_contexts.bin

Change-Id: I0c17b4e36a14afd24763343c09eaca650ea4cefd
diff --git a/file_contexts b/file_contexts
index c9f01d8..13d19ae 100644
--- a/file_contexts
+++ b/file_contexts
@@ -33,7 +33,7 @@
 /sdcard             u:object_r:rootfs:s0
 
 # SELinux policy files
-/file_contexts      u:object_r:rootfs:s0
+/file_contexts\.bin u:object_r:rootfs:s0
 /property_contexts  u:object_r:rootfs:s0
 /seapp_contexts     u:object_r:rootfs:s0
 /sepolicy           u:object_r:rootfs:s0