vlib: wake up workers if interrupts are posted

Type: fix

Change-Id: If8dbbcb46193fd057fe8d704058609a3a8787d6c
Signed-off-by: Benoît Ganne <bganne@cisco.com>
diff --git a/src/vlib/node.h b/src/vlib/node.h
index ca7564a..9c4cadd 100644
--- a/src/vlib/node.h
+++ b/src/vlib/node.h
@@ -698,6 +698,7 @@
   /* Node runtime indices for input nodes with pending interrupts. */
   vlib_node_interrupt_t *pending_local_interrupts;
   vlib_node_interrupt_t *pending_remote_interrupts;
+  volatile u32 *pending_remote_interrupts_notify;
   clib_spinlock_t pending_interrupt_lock;
 
   /* Input nodes are switched from/to interrupt to/from polling mode