Attach minimum Linux versions to provided libcs + incorporate ABI in VersionRange.default()
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…c entry. (With the exception of x86 since that was available from the beginning.) These were determined by analyzing the full, reconstructed Git history of the Linux kernel here: https://landley.net/kdocs/fullhist
The old logic only checked it for macOS, but we also need it to be checked for Linux now.
This is necessary to pick out the correct minimum OS version from the std.zig.target.available_libcs list.
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This extends what we already do in
std.zig.target.canBuildLibC()for macOS to Linux. Additionally,std.Target.Os.VersionRange.default()is changed to incorporate the ABI into its decision so that it can pick out the right entry instd.zig.target.available_libcs.