gpio: bcm6345: allow to use this driver on arm bcm68360

This IP is also used on some arm SoC, so we allow to
use it on arm bcm68360 too.

Signed-off-by: Philippe Reynes <philippe.reynes@softathome.com>
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index 1de6f52..4e5a707 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -55,7 +55,8 @@
 
 config BCM6345_GPIO
 	bool "BCM6345 GPIO driver"
-	depends on DM_GPIO && (ARCH_BMIPS || ARCH_BCM6858 || ARCH_BCM63158)
+	depends on DM_GPIO && (ARCH_BMIPS || ARCH_BCM68360 || \
+			       ARCH_BCM6858 || ARCH_BCM63158)
 	help
 	  This driver supports the GPIO banks on BCM6345 SoCs.