tpm: cr50: Use the correct GPIO binding

This device should use ready-gpios rather than ready-gpio. Fix it.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/drivers/tpm/cr50_i2c.c b/drivers/tpm/cr50_i2c.c
index c1d2d2f..b67051a 100644
--- a/drivers/tpm/cr50_i2c.c
+++ b/drivers/tpm/cr50_i2c.c
@@ -607,7 +607,7 @@
 		priv->irq = irq;
 		priv->use_irq = true;
 	} else {
-		ret = gpio_request_by_name(dev, "ready-gpio", 0,
+		ret = gpio_request_by_name(dev, "ready-gpios", 0,
 					   &priv->ready_gpio, GPIOD_IS_IN);
 		if (ret) {
 			log_warning("Cr50 does not have an ready GPIO/interrupt (err=%d)\n",