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_params.c

@@ -154,8 +154,8 @@ void parse_cmdline_args(int argc, char **argv,
 		case 'U':
 			cfg->do_unload = true;
 			break;
-		case 'p':
-			cfg->xsk_poll_mode = true;
+		case 'w':
+			cfg->xsk_wakeup_mode = true;
 			break;
 		case 'q':
 			verbose = false;