AF_XDP-interaction: rename --poll-mode to --wakeup-mode

It is confusing to name the option what will wait for packets
on the file descriptor, for --poll, just because the function
call have this name.  It confusing as AF_XDP users often want
to busy-poll for packets (for max performance reasons).

Name the new option --wakeup instead of --wait as the effect
of waiting for the FD is that the kernel needs to wakeup
the userspace process.

Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>

AF_XDP-interaction/common_defines.h

@@ -22,7 +22,7 @@ struct config {
 	char dest_mac[18];
 	__u16 xsk_bind_flags;
 	int xsk_if_queue;
-	bool xsk_poll_mode;
+	bool xsk_wakeup_mode;
 };
 
 /* Defined in common_params.o */