[x86] [BUG FIX] Fix x86 kernels and fix the issue x86 compiling fails when `with_profiler=ON` #3478

* Optimize softmax. When the input tensor is 2-D and axis is 1, there is no need to resize.

* Optimize the gru, avoid calling Tensor::Slice.
test=develop

* Remove a std::vector in softmax.
test=develop

* Define CalculateSeqWidth to get the width of a sequence.
test=develop

* replace gru RowWiseAdd Eigen with c implementation
test=develop