Second stage init is on system

Test: boot hikey
Change-Id: I8f26f858af8ccde1d7f4b346966bbb6bbeab5a92
diff --git a/private/file_contexts b/private/file_contexts
index e78c02f..243773b 100644
--- a/private/file_contexts
+++ b/private/file_contexts
@@ -16,6 +16,7 @@
 # Executables
 /charger            u:object_r:rootfs:s0
 /init               u:object_r:init_exec:s0
+/system/bin/init    u:object_r:init_exec:s0
 /sbin(/.*)?         u:object_r:rootfs:s0
 
 # For kernel modules