package/busybox: Fix hwclock for glibc 2.31+

Pick the below patch from upstream, in order to fix
'settimeofday: Invalid argument' introduced by using glibc v2.31+.
(busybox hasn't tagged a new version since).

See https://bugs.busybox.net/show_bug.cgi?id=12756

 for more info.

Signed-off-by: Klaus Heinrich Kiwi <klaus@linux.vnet.ibm.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>