From fcdb4f0355d8ea4e8dc1bc3dc022767e9c88adb7 Mon Sep 17 00:00:00 2001
From: Yang Wang <tiandiwoxin@icloud.com>
Date: Mon, 7 Aug 2017 01:58:46 -0700
Subject: [PATCH] add nhwc im2col and col2im kernel (#1419)

* add nhwc im2col and col2im kernel

* address comments