Fix static kernel builds with carp(4) by changing its SYSINIT order so that

it is initialized after basic protocol initialization, which allows it to
register via pf_proto_register().

Reviewed by:	bz
Approved by:	ken (mentor)

sys/netinet/ip_carp.c

@@ -2405,4 +2405,4 @@ static moduledata_t carp_mod = {
 	0
 };
 
-DECLARE_MODULE(carp, carp_mod, SI_SUB_PSEUDO, SI_ORDER_ANY);
+DECLARE_MODULE(carp, carp_mod, SI_SUB_PROTO_DOMAIN, SI_ORDER_ANY);