odhcpd: update to Git HEAD (2026-03-16)

odhcpd: update to Git HEAD (2026-03-16)

160e5fa3957c odhcpd: ensure zero padding on DNSSL
2a316dbfd798 odhcpd: ignore NULL in dhcpv4_free_lease() stub
b960d4cbe27b ubus: fix truncated field in DHCPv6 lease query
4e26e1361335 dhcpv4: fix avl_delete on leases not in avl tree
ea5af5bffa2d dhcpv4: fix segfault when disabling interface

https://github.com/openwrt/odhcpd/compare/13cec018c0d9...160e5fa3957c

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/22454
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>