[rocm-libraries] ROCm/rocm-libraries#4593 (commit a4c2a37)

[CK_BUILDER] Move some smoke tests that require GPU

Since the CK builder is focused on compile time logic, let's keep the
`smoke-builder` target CPU-only so that it can be ran without a CPU.
Alternatively, we could define a `smoke-cpu-builder` or some special
subtarget, but it's probably simpler to just stick to CPU for this. (My
thinking is that in general GPU testing will be heavier than the smoke
tests. Further, the GPU testing code will likely move outside of the
builder once builder code is moved out of experimental.)

This PR clarifies that CPU-only intention for `smoke-builder` and moves
some GPU testing code to `smoke-regression`.