zenfone6: Start using vendor_overlay

* This lets us override files in /vendor without
  relying on bind mounts ^.^

* Remove too NEED_KERNEL_MODULE_SYSTEM

Change-Id: I94c244b0329d6f6cfe7efdc77e0a3ccc22ab8843
diff --git a/config.fs b/config.fs
new file mode 100644
index 0000000..457a8e8
--- /dev/null
+++ b/config.fs
@@ -0,0 +1,5 @@
+[system/product/vendor_overlay/*/bin/*]
+mode: 0755
+user: AID_ROOT
+group: AID_SHELL
+caps: 0
\ No newline at end of file