Fix the SIOC[DG]LIFADDR ioctls in in_lifaddr_ioctl() to work with IPv4 interface address rather than IPv6.
Fix the SIOC[DG]LIFADDR ioctls in in_lifaddr_ioctl() to work with IPv4
interface address rather than IPv6.

Submitted by:	hrs
Reviewed by:	bz
MFC after:	1 week

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase