[PyTorch] Update sccache to support HCC

[Jorghi12]

In order to improve build times, I've extended sccache to support HCC: https://github.com/Jorghi12/sccache. Once a full enumeration of the HCC command line arguments are obtained, I'll send a more robust solution upstream into Mozzila's sccache branch.

[Jorghi12]

HIPCC update:
ROCm/hip#586

[iotamudelta]

CI uses sccache successfully.