chore: restrict Android cfg too 64-bit to match linux_execfn

[YumeYuka]

linux_execfn cfg requirements to only support Linux and 64-bit Android targets

#[cfg(any(
    all(target_os = "android", target_pointer_width = "64"),
    target_os = "linux",
))]
#[inline]
pub(crate) fn linux_execfn() -> &'static CStr {
    if let Some(libc_getauxval) = getauxval.get() {
        unsafe { CStr::from_ptr(libc_getauxval(c::AT_EXECFN).cast()) }
    } else {
        cstr!("")
    }
}

[oech3]

@sunfishcode No 32bit support?

[oech3]

I think 32bit CI is passing at here with current cfg. No 32bit android CI at this repo (broken).

[github-actions]

GNU testsuite comparison:

Skip an intermittent issue tests/date/resolution (fails in this run but passes in the 'main' branch)
Skipping an intermittent issue tests/cut/bounded-memory (passes in this run but fails in the 'main' branch)
Congrats! The gnu test tests/cut/cut-huge-range is now passing!