Replace GPU_LAUNCH_KERNEL with GpuLaunchKernel

[jerryyin]

Most work is done by following two commands:

• find ./ -type f -exec sed -i -e 's/GPU_LAUNCH_KERNEL/GpuLaunchKernel/g' {} ;
• find ./ -type f -exec sed -i -e 's/TF_CHECK_OK(CudaLaunchKernel/GpuLaunchKernel/g' {} ;

Test performed:
Local compile of rocm build succeed

[whchung]

LGTM

[deven-amd]

LGTM for the first commit

[whchung]

@jerryyin CUDA path has build errors. It seems the very recent changes in #443 was't taken into consideration in the PR.

[jerryyin]

@whchung You bet! Rebase timing can't be better, and git silently take all code update in #443 without any complains.

[whchung]

@jerryyin just merged this PR. please amend upstream PR thanks.

@yxsamliu please check with hip-clang toolchain.