[do not merge] Enable smem-epilogue and manual fix sync

[zasdfgbnm]

In this branch, I enabled the smem epilogue, dump a kernel, and manually fixes #3561 by modifying the generated kernel. This will be the baseline of my other experiments. nsys benchmark on H200 is attached into this branch, here is the result:

 Time (%)  Total Time (ns)  Instances  Avg (ns)  Med (ns)  Min (ns)  Max (ns)  StdDev (ns)                                                  Name

 --------  ---------------  ---------  --------  --------  --------  --------  -----------  ----------------------------------------------------------------------------------------------------
     34.3           135137          1  135137.0  135137.0    135137    135137          0.0  <unnamed>::nvfuser_none_f0_c0_r0_g0(<unnamed>::Tensor<<unnamed>::__half, (int)3, (int)3>, <unnamed>…
     22.2            87521          1   87521.0   87521.0     87521     87521          0.0  nvjet_hsh_256x128_64x4_1x2_h_bz_coopA_NTT

nvFuser/cuBLAS = 64.8%

The command I used to run the benchmark:

NVFUSER_EXTERNAL_SRC="__tmp_kernel_none_f0_c0_r0_g0.cu" nsys nvprof ./bin/test_matmul --gtest_filter=HopperMatmulTest.HSH_NT_128BSwizzle