macho: allow .simulator ABI when targeting Apple simulator env

For example, in order to run a binary on an iPhone Simulator,
you need to specify that explicitly as part of the target as
`aarch64-ios-simulator` rather than `aarch64-ios-gnu` or
`aarch64-ios` for short.
2371a63bd4Jakub Konka committed on 8/10/2021, 11:41:10 AMparent7007684
2 files changedLine totals unavailable