MT#16443 Fix setting reseller_id for contacts

When creating customercontact as reseller, the reseller_id is
not properly set.

Change-Id: I5a00475cbd3d4be7db005a8e4ca248266f7381fa

lib/NGCP/Panel/Controller/API/CustomerContacts.pm

@@ -185,6 +185,7 @@ sub POST :Allow {
         my $now = NGCP::Panel::Utils::DateTime::current_local;
         $resource->{create_timestamp} = $now;
         $resource->{modify_timestamp} = $now;
+        $resource->{reseller_id} = $reseller_id;
         my $contact;
         try {
             $contact = $c->model('DB')->resultset('contacts')->create($resource);