Relay_Message_Option and Reconfigure_Message_Option updated

Created by: semihalf-klimkowicz-jacek

Relay_Message_Option must contain relayed Client_Server_Message, otherwise it is endless recursion and not possible to use as DHCPv6 relay.

In Reconfigure_Message_Option it is more convenient to define msg_type as OCT1 to align with other occurences of msg types. Also all msg type constants are defined as OCT1 already so we can avoid multiple oct2int conversions.

Signed-off-by: Jacek Klimkowicz jakl@semihalf.com