Don't offload GEG/CEG kernels to rocMLIR for f32 on navi3x

[bdevorem]

DOR (Definition of Ready)

Ready

Description

rocMLIR doesn't support attention like kernels. eg. GEG, Attention, CEG if there is no associated wmma/mfma instruction for that dtype on the hardware. The only current known case is fp32 on navi3x.

In MIGraphX, we treat GEG/CEG and attention differently. This issue is for GEG/CEG specifically; attention is covered by #4308 which is less trivial than this case.

DOD (Definition of Done)

CEG/GEG kernels are not generated for unsupported dtype/hardware combos

[pfultz2]

I tried to disable GEG for fp32 in #4360, but there are other test failures with fp16 due to ordering issues. I think inserting a sort should fix the issue.

[bdevorem]

I tried to disable GEG for fp32 in #4360, but there are other test failures with fp16 due to ordering issues. I think inserting a sort should fix the issue.

that failure is actually coming from a bug in my sort, that I'm already using. I've fixed it and it'll be in my next PR, which also has a check for navi3/f32.