[clang] [llvm] Add support for Arm Cortex A78AE CPU (PR #84485)

[David Spickett via cfe-commits]

DavidSpickett wrote:

> I've added a host id (0xd42) to llvm/lib/TargetParser/Host.cpp, so I think so (unless there's something else required).

Right, of course, somehow I skipped right over that.

https://github.com/llvm/llvm-project/pull/84485