WIP [VOL-2811] - Incorporate preliminary onu-adapter-go code into opencord repo

- reason "discovery-mibsync-complete" reached (via full MibUpload only, received data won't be stored yet)
- first review comments of patchset #4 considered
 (please have a look into our inline-comments in Gerrit to know more about the current state)
- no refactoring done yet

Change-Id: Iac47817f8ce4bd28dd8132f530b0570d57ae99b8
Signed-off-by: Holger Hildebrandt <holger.hildebrandt@adtran.com>
diff --git a/vendor/golang.org/x/sys/unix/syscall_darwin_amd64.1_11.go b/vendor/golang.org/x/sys/unix/syscall_darwin_amd64.1_11.go
new file mode 100644
index 0000000..68ebd6f
--- /dev/null
+++ b/vendor/golang.org/x/sys/unix/syscall_darwin_amd64.1_11.go
@@ -0,0 +1,9 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build darwin,amd64,!go1.12
+
+package unix
+
+//sys  Getdirentries(fd int, buf []byte, basep *uintptr) (n int, err error) = SYS_GETDIRENTRIES64