[BUG] example 06_splitK_gemm should allow post-Volta GPUs

[lucifer1004]

Describe the bug
Only Volta GPUs are allowed to run the example.

cutlass/examples/06_splitK_gemm/splitk_gemm.cu

Lines 188 to 189 in e1976da

	if (props.major != 7) {
	std::cerr << "Volta Tensor Ops must be run on a machine with compute capability of 70, 72, or 75."

Steps/Code to reproduce bug
Run the compiled program on a machine with compute capability >= 80.

Expected behavior
The program should work on Volta and later GPUs.

Additional context
I have locally tested that this could work on 89.

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[github-actions]

This issue has been labeled inactive-90d due to no recent activity in the past 90 days. Please close this issue if no further response or action is needed. Otherwise, please respond with a comment indicating any updates or changes to the original issue and/or confirm this issue still needs to be addressed.