drm/sitronix/st7571-i2c: Log probe deferral cause for GPIO get failure

The driver already uses the dev_err_probe() helper (that only prints error
messages for the -EPROBE_DEFER case) when fails to get any other resource.

Also do the same when it fails to obtain the reset GPIO.

Reviewed-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Link: https://lore.kernel.org/r/20250715110411.448343-3-javierm@redhat.com
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>

Author: martinezjavier

drivers/gpu/drm/sitronix/st7571-i2c.c

@@ -804,7 +804,9 @@ static int st7571_parse_dt(struct st7571_device *st7571)
 
 	st7571->reset = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
 	if (IS_ERR(st7571->reset))
-		return PTR_ERR(st7571->reset);
+		return dev_err_probe(dev, PTR_ERR(st7571->reset),
+				     "Failed to get reset gpio\n");
+
 
 	return 0;
 }