remote: fix enablement of IP networking in virtproxyd

This fixes

    commit b7ed8ce9
    Author: Daniel P. Berrangé <berrange@redhat.com>
    Date:   Thu Jul 4 12:33:23 2019 +0100

      remote: introduce virtproxyd daemon to handle IP connectivity
Reviewed-by: NAndrea Bolognani <abologna@redhat.com>
Signed-off-by: NDaniel P. Berrangé <berrange@redhat.com>

src/remote/Makefile.inc.am

@@ -236,7 +236,7 @@ virtproxyd_CFLAGS = \
 	$(REMOTE_DAEMON_CFLAGS) \
 	-DSOCK_PREFIX="\"libvirt\"" \
 	-DDAEMON_NAME="\"virtproxyd\"" \
-	-DENABLE_IP \
+	-DWITH_IP \
 	-DVIRTPROXYD \
 	$(NULL)
 virtproxyd_LDFLAGS = $(REMOTE_DAEMON_LD_FLAGS)