fix bug for xcode10

fix some bugs in fpga V2 track and update fpga V2 pe code

enable the concat op to support int8_t type as inputs and outputs.

init parameters for conv&EW drivers for FPGA track close #1341

fix some bugs in fpga V2 track

fix bugs for FPGA v2 track

Fix bug for FPGA track

Fix undefined symbol for ios arm v8

add fusion fc int8_t op and its UT.

imp dropout op kernel for gpu

Add pooling int8

add deconv for FPGA V1

imp resnet and squeezenet

This reverts commit 0a6079cc.