gpio: Kconfig: Enable Zynq GPIO driver using kconfig

Enable DM GPIO and ZYNQ GPIO using kconfig instead of the board
config file.

Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index c8e0337..802d3b4 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -579,6 +579,7 @@
 	select SPL_OF_CONTROL if SPL
 	select DM
 	select DM_ETH
+	select DM_GPIO
 	select SPL_DM if SPL
 	select DM_MMC
 	select DM_SPI
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index f56a606..4d2cc50 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -136,4 +136,11 @@
 	help
 	  Say yes here to support Marvell MVEBU (Armada XP/38x) GPIOs.
 
+config ZYNQ_GPIO
+	bool "Zynq GPIO driver"
+	depends on DM_GPIO && ARCH_ZYNQ
+	default y
+	help
+	  Supports GPIO access on Zynq SoC.
+
 endmenu
diff --git a/include/configs/zynq-common.h b/include/configs/zynq-common.h
index c96b9c5..49d9fd0 100644
--- a/include/configs/zynq-common.h
+++ b/include/configs/zynq-common.h
@@ -39,8 +39,6 @@
 #define CONFIG_ARM_DCC
 #define CONFIG_ZYNQ_SERIAL
 
-#define CONFIG_ZYNQ_GPIO
-
 /* Ethernet driver */
 #if defined(CONFIG_ZYNQ_GEM)
 # define CONFIG_MII