[stable/20240723][Darwin][Driver][clang] arm64-apple-none-macho is missing the Apple macros from arm-apple-none-macho #9819
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arm-apple-none-macho uses DarwinTargetInfo which provides several Apple specific macros. arm64-apple-none-macho however just uses the generic AArch64leTargetInfo and doesn't get any of those macros. It's not clear if everything from DarwinTargetInfo is desirable for arm64-apple-none-macho, so make an AppleMachOTargetInfo to hold the generic Apple macros and a few other basic things.
rdar://142625255