gpio: graniterapids: Add missing raw_spinlock_init()

Add the missing raw_spin_lock_init() call to gnr_gpio_probe().

Fixes: ecc4b14 ("gpio: Add Intel Granite Rapids-D vGPIO driver")
Signed-off-by: Aapo Vienamo <aapo.vienamo@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Link: https://lore.kernel.org/r/20240625135343.673745-1-aapo.vienamo@linux.intel.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

Author: Aapo Vienamo

drivers/gpio/gpio-graniterapids.c

@@ -296,6 +296,8 @@ static int gnr_gpio_probe(struct platform_device *pdev)
 	if (!priv)
 		return -ENOMEM;
 
+	raw_spin_lock_init(&priv->lock);
+
 	regs = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(regs))
 		return PTR_ERR(regs);