The conversion to drop gnulib in the previous patch:

  commit 8242ce4f
  Author: Daniel P. Berrangé <berrange@redhat.com>
  Date:   Thu Aug 8 10:23:26 2019 +0100

    tools: avoid accidentally using files from gnulib

Missed a few conversions needed for FreeBSD. In particular
netdb.h doesn't pull in sys/socket.h or netinet/in.h
Signed-off-by: NDaniel P. Berrangé <berrange@redhat.com>