confd: ensure DHCP client is not started before netd

This is a follow-up to c559b8f2 (new-frr) where netd now is responsible
for funneling static routes, as well as routes from DHCP clients, into
the kernel via Frr.

For this to work, in particular at boot, any DHCP client must wait for
netd to have started or any default routes learned will be lost.

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>

src/confd/src/dhcp-client.c

@@ -144,7 +144,7 @@ static void add(const char *ifname, struct lyd_node *cfg)
 
 	fprintf(fp, "# Generated by Infix confd\n");
 	fprintf(fp, "metric=%s\n", metric);
-	fprintf(fp, "service <!> name:dhcp-client :%s <net/%s/running> \\\n"
+	fprintf(fp, "service <!pid/netd> name:dhcp-client :%s <net/%s/running> \\\n"
 		"	[2345] udhcpc -f -p /run/dhcp-client-%s.pid -t 3 -T 5 -A 30 %s -S -R \\\n"
 		"		%s%s \\\n"
 		"		-i %s %s %s \\\n"