i2c: Added kconfig support for CONFIG_ZYNQ_I2C0 and CONFIG_ZYNQ_I2C1

This patch added Kconfig support for CONFIG_ZYNQ_I2C0 and
CONFIG_ZYNQ_I2C1 and enabled it in respective defconfig.

Signed-off-by: Vipul Kumar <vipulk@xilinx.com>
Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
diff --git a/drivers/i2c/Kconfig b/drivers/i2c/Kconfig
index 6843131..932abd3 100644
--- a/drivers/i2c/Kconfig
+++ b/drivers/i2c/Kconfig
@@ -288,6 +288,18 @@
 	help
 	  Set CONFIG_SYS_I2C_ZYNQ_SPEED for speed setting.
 
+config ZYNQ_I2C0
+	bool "Xilinx I2C0 controller"
+	depends on SYS_I2C_ZYNQ
+	help
+	  Enable Xilinx I2C0 controller.
+
+config ZYNQ_I2C1
+	bool "Xilinx I2C1 controller"
+	depends on SYS_I2C_ZYNQ
+	help
+	  Enable Xilinx I2C1 controller.
+
 config SYS_I2C_IHS
         bool "gdsys IHS I2C driver"
         depends on DM_I2C