fix fallback when ipv6 is disabled but resolv.conf has v6 nameserves

[musl] / src / signal / aarch64 / restore.s

.global __restore
.hidden __restore
.type __restore,%function
__restore:
.global __restore_rt
.hidden __restore_rt
.type __restore_rt,%function
__restore_rt:
        mov x8,#139 // SYS_rt_sigreturn
        svc 0