[MLIR] Make the ROCM integration tests runnable

- Move the #define s to the GPU Transform library from GPU Ops so that
SerializeToHsaco is non-trivially compiled

- Add required includes to SerializeToHsaco

- Move MCSubtargetInfo creation to the correct point in the
compilation process

- Change mlir in ROCM tests to account for renamed/moved ops

Differential Revision: https://reviews.llvm.org/D114184