odhcp6c: update to latest git HEAD

0ffa3a3 dhcpv6: harden reconfigure logic
3999b6d dhcpv6: rework DHCPv6 message to string implementation

Signed-off-by: Hans Dedecker <[email protected]>

package/network/ipv6/odhcp6c/Makefile

@@ -12,9 +12,9 @@ PKG_RELEASE:=16
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL=$(PROJECT_GIT)/project/odhcp6c.git
-PKG_SOURCE_DATE:=2020-12-03
-PKG_SOURCE_VERSION:=faed29aa733cd3e7c0269d5dc2fc6a8e1d35f1ce
-PKG_MIRROR_HASH:=7b47aeacfc381e81e570a00733aeafd229e45f576134d5b8548eeb01d56f1073
+PKG_SOURCE_DATE:=2020-12-08
+PKG_SOURCE_VERSION:=0ffa3a31f7146d320214f431291c1196070a010f
+PKG_MIRROR_HASH:=16eab81663ad7bd7f650c62019b65ded21f08e797874041787543e2e8ed665e8
 PKG_MAINTAINER:=Hans Dedecker <[email protected]>
 PKG_LICENSE:=GPL-2.0