Fix distcheck

There was missing file

git-svn-id: svn://bind10.isc.org/svn/bind10/branches/trac408@3721 e5f2f494-b856-4b98-b285-d166d9295462

src/lib/nsas/Makefile.am

@@ -18,7 +18,7 @@ libnsas_la_SOURCES += nameserver_address_store.cc nameserver_address_store.h
 libnsas_la_SOURCES += nameserver_address.h
 libnsas_la_SOURCES += nameserver_entry.cc nameserver_entry.h
 libnsas_la_SOURCES += nsas_entry_compare.h
-libnsas_la_SOURCES += nsas_entry.h
+libnsas_la_SOURCES += nsas_entry.h nsas_types.h
 libnsas_la_SOURCES += zone_entry.cc zone_entry.h
 libnsas_la_SOURCES += fetchable.h
 libnsas_la_SOURCES += address_request_callback.h