odhcpd: update to latest git HEAD

odhcpd: update to latest git HEAD

1f01299 config: fix build failure in case DHCPv4 support is disabled
67b3a14 dhcpv4: fix assignment of requested IP address
ca8ba91 dhcp: rework static lease logic
36833ea dhcpv6: rapid commit support
1ae316e dhcpv6: fix parsing of DHCPv6 relay messages
80157e1 dhcpv4: fix compile issue
671ccaa dhcpv6-ia: move function definitions to odhcpd.h
0db69b0 dhcpv6: improve code readibility
7847b27 treewide: unify dhcpv6 and dhcpv4 assignments
a54cee0 netlink: rework handling of netlink messages
9f25dd8 treewide: use avl tree to store interfaces
f21a0a7 treewide: align syslog tracing
edc5fb0 dhcpv6-ia: add full CONFIRM support
9d6eadf dhcpv6-ia: rework append_reply()

Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>