dccp: small build fix

*** 554,563 ****
--- 554,564 ----
  file path=usr/include/net/vjcompress.h
  file path=usr/include/netconfig.h
  file path=usr/include/netdb.h
  file path=usr/include/netdir.h
  file path=usr/include/netinet/arp.h
+ file path=usr/include/netinet/dccp.h
  file path=usr/include/netinet/dhcp.h
  file path=usr/include/netinet/dhcp6.h
  file path=usr/include/netinet/icmp6.h
  file path=usr/include/netinet/icmp_var.h
  file path=usr/include/netinet/if_ether.h