odroid-c2: enable I2C

Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
diff --git a/configs/odroid-c2_defconfig b/configs/odroid-c2_defconfig
index f7f8016..1afd2fc 100644
--- a/configs/odroid-c2_defconfig
+++ b/configs/odroid-c2_defconfig
@@ -11,12 +11,15 @@
 # CONFIG_CMD_IMI is not set
 # CONFIG_CMD_FPGA is not set
 CONFIG_CMD_GPIO=y
+CONFIG_CMD_I2C=y
 # CONFIG_CMD_LOADS is not set
 CONFIG_CMD_MMC=y
 # CONFIG_CMD_SETEXPR is not set
 CONFIG_OF_CONTROL=y
 CONFIG_NET_RANDOM_ETHADDR=y
 CONFIG_DM_GPIO=y
+CONFIG_DM_I2C=y
+CONFIG_SYS_I2C_MESON=y
 CONFIG_DM_MMC=y
 CONFIG_MMC_MESON_GX=y
 CONFIG_DM_ETH=y