Created by: chenjiaoAngel

修复手势识别crash和眼神唤醒的性能问题 add 2x2s2p1 pooling improve gaze profiler: cherry-pick PR3705 add 3x3s1 Winograd int8 : cherry-pick PR3767 fix xiaodu crash in gemm prepacked: cherry-pick PR3781 fix concat axis < 0 compute error problem: cherry-pick PR3802 cherry-pick PR3834

• update con int8 kernel choose, improve xiaodu_detect int8 model profile: 45.1326—42.6796
• fix softmax compute error and change softmax axis_size=4 kernel choice