drivers: i2c: add brcm iproc I2C driver support

Add I2C driver support for Broadcom iproc-based socs.

Signed-off-by: Arjun Jyothi <arjun.jyothi@broadcom.com>
Signed-off-by: Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com>
Signed-off-by: Sheetal Tigadoli <sheetal.tigadoli@broadcom.com>
Signed-off-by: Vladimir Olovyannikov <vladimir.olovyannikov@broadcom.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
diff --git a/drivers/i2c/Kconfig b/drivers/i2c/Kconfig
index 03d2fed..e42b651 100644
--- a/drivers/i2c/Kconfig
+++ b/drivers/i2c/Kconfig
@@ -71,6 +71,14 @@
 	  i2c-gpio driver unless your system can cope with this limitation.
 	  Binding info: doc/device-tree-bindings/i2c/i2c-at91.txt
 
+config SYS_I2C_IPROC
+	bool "Broadcom I2C driver"
+	depends on DM_I2C
+	help
+	  Broadcom I2C driver.
+	  Add support for Broadcom I2C driver.
+	  Say yes here to to enable the Broadco I2C driver.
+
 config SYS_I2C_FSL
        bool "Freescale I2C bus driver"
        depends on DM_I2C