Don't leave RX in bind mode on console open fail

Don't leave RX in bind mode in the unlikely eventuality that console
open fails

src/drivers/px4io/px4io.cpp

@@ -1696,8 +1696,6 @@ bind(int argc, char *argv[])
 	else 
 		errx(1, "unknown parameter %s, use dsm2 or dsmx", argv[2]);
 
-	g_dev->ioctl(nullptr, DSM_BIND_START, pulses);
-
 	/* Open console directly to grab CTRL-C signal */
 	int console = open("/dev/console", O_NONBLOCK | O_RDONLY | O_NOCTTY);
 	if (!console)
@@ -1706,6 +1704,8 @@ bind(int argc, char *argv[])
 	warnx("This command will only bind DSM if satellite VCC (red wire) is controlled by relay 1.");
 	warnx("Press CTRL-C or 'c' when done.");
 
+	g_dev->ioctl(nullptr, DSM_BIND_START, pulses);
+
 	for (;;) {
 		usleep(500000L);
 		/* Check if user wants to quit */