[llvm] Generate valid llvm IR for the DivRem intrinsics.

[vargaz]

Fixes #92455

[vargaz]

Not sure why this is not hit by any of the CI test suites.

[fanyang-mono]

Not sure why this is not hit by any of the CI test suites.

I would expect Build linux-x64 Release AllSubsets_Mono_LLVMAot_RuntimeTests llvmaot hit this, however, I took a brief look at the AOT log. It seems that it only aot'ed the test assemblies, not the BCL. I am not sure why. Need to look into it further.

[vargaz]

Even the test assemblies should run into this problem, it happens for a line like:
X86Base.X64.DivRem ((ulong)i, (ulong)j, (ulong)k);

[vargaz]

This could be backported to 8.0 although its unlikely to be encountered by users.