[CPUID] Add ISA entries for A64FX and M1 (#44194)
* [CPUID] Rework how current ISA is determined
* [CPUID] Add ISA entry for A64FX
* [CPUID] Add ISA entry for Apple Silicon M1
* [CPUID] Simplify collection of full set of features for architecture
* [CPUID] Remove AES from A64FX ISA, not all chips appear to have it
