target.zig: Constrain aarch64 to glibc version 2.17 or later
Had constrained the `aarch64_be` target, but not `aarch64`. This
constraint is necessary because earlier versions of glibc do not support
the aarch64 architecture.
Also, skip unsupported test cases.
ed795a907dPat Tullmann committed on 6/6/2024, 4:36:16 PMparent8bee879