i2c: Add support for Renesas rcar

This supports i2c controller for Renesas rcar.

Signed-off-by: Hisashi Nakamura <hisashi.nakamura.ak@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
diff --git a/drivers/i2c/Makefile b/drivers/i2c/Makefile
index 2395ded..84a2754 100644
--- a/drivers/i2c/Makefile
+++ b/drivers/i2c/Makefile
@@ -29,6 +29,7 @@
 COBJS-$(CONFIG_SYS_I2C_FTI2C010) += fti2c010.o
 COBJS-$(CONFIG_SYS_I2C_MXC) += mxc_i2c.o
 COBJS-$(CONFIG_SYS_I2C_PPC4XX) += ppc4xx_i2c.o
+COBJS-$(CONFIG_SYS_I2C_RCAR) += rcar_i2c.o
 COBJS-$(CONFIG_SYS_I2C_SOFT) += soft_i2c.o
 COBJS-$(CONFIG_SYS_I2C_TEGRA) += tegra_i2c.o
 COBJS-$(CONFIG_ZYNQ_I2C) += zynq_i2c.o