The vendor id is used to determine whether the processor
supports hardware CRC32 in the Scudo code. The previous
discussion about the patch is in [1], and more information
about Hygon Dhyana processor is in[2].

[1]: https://reviews.llvm.org/D62368
[2]: https://git.kernel.org/torvalds/c/c9661c1e80b609cd038db7c908e061f0535804ef

Patch by fanjinke (Jinke Fan)

Differential Revision: https://reviews.llvm.org/D78874