fix int8 add ut (#17166)
fix int8 add ut (#17166)


eric-haibin-lin/mxnet,leezu/mxnet,DickJC123/mxnet,eric-haibin-lin/mxnet,leezu/mxnet,tlby/mxnet,yajiedesign/mxnet,yajiedesign/mxnet,ForkedReposBak/mxnet,larroy/mxnet,eric-haibin-lin/mxnet,eric-haibin-lin/mxnet,tlby/mxnet,szha/mxnet,szha/mxnet,sxjscience/mxnet,yajiedesign/mxnet,sxjscience/mxnet,ForkedReposBak/mxnet,eric-haibin-lin/mxnet,eric-haibin-lin/mxnet,zhreshold/mxnet,zhreshold/mxnet,sxjscience/mxnet,zhreshold/mxnet,sxjscience/mxnet,sxjscience/mxnet,apache/incubator-mxnet,leezu/mxnet,leezu/mxnet,szha/mxnet,apache/incubator-mxnet,eric-haibin-lin/mxnet,yajiedesign/mxnet,ForkedReposBak/mxnet,larroy/mxnet,szha/mxnet,zhreshold/mxnet,tlby/mxnet,yajiedesign/mxnet,tlby/mxnet,DickJC123/mxnet,larroy/mxnet,yajiedesign/mxnet,tlby/mxnet,eric-haibin-lin/mxnet,sxjscience/mxnet,ForkedReposBak/mxnet,leezu/mxnet,leezu/mxnet,leezu/mxnet,eric-haibin-lin/mxnet,szha/mxnet,larroy/mxnet,ForkedReposBak/mxnet,leezu/mxnet,ForkedReposBak/mxnet,yajiedesign/mxnet,szha/mxnet,tlby/mxnet,yajiedesign/mxnet,yajiedesign/mxnet,ForkedReposBak/mxnet,larroy/mxnet,larroy/mxnet,apache/incubator-mxnet,DickJC123/mxnet,tlby/mxnet,zhreshold/mxnet,DickJC123/mxnet,zhreshold/mxnet,apache/incubator-mxnet,zhreshold/mxnet,larroy/mxnet,szha/mxnet,sxjscience/mxnet,larroy/mxnet,larroy/mxnet,sxjscience/mxnet,ForkedReposBak/mxnet,tlby/mxnet,tlby/mxnet,szha/mxnet,szha/mxnet,zhreshold/mxnet,zhreshold/mxnet,leezu/mxnet,sxjscience/mxnet,ForkedReposBak/mxnet,tlby/mxnet