vcl: fix epollet test for unhandled evts

Argument to vcl_epoll_ctl_add_unhandled_event is often the result of an
and between events and EPOLLET which is larger than u8

Type: fix

Change-Id: I8c98f557fa1db9f3eb79c90ecdd60ac9366d4d40
Signed-off-by: Florin Coras <fcoras@cisco.com>
diff --git a/src/vcl/vppcom.c b/src/vcl/vppcom.c
index d9c3b30..5174fe8 100644
--- a/src/vcl/vppcom.c
+++ b/src/vcl/vppcom.c
@@ -2830,7 +2830,7 @@
 
 static void
 vcl_epoll_ctl_add_unhandled_event (vcl_worker_t *wrk, vcl_session_t *s,
-				   u8 is_epollet, session_evt_type_t evt)
+				   u32 is_epollet, session_evt_type_t evt)
 {
   if (!is_epollet)
     {