ARM: shmobile: koelsch: Enable I2C in defconfig

This enables I2C support in koelsch_defconfig.
Signed-off-by: NValentine Barshak <valentine.barshak@cogentembedded.com>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

arch/arm/configs/koelsch_defconfig

@@ -62,6 +62,8 @@ CONFIG_SH_ETH=y
 CONFIG_SERIAL_SH_SCI=y
 CONFIG_SERIAL_SH_SCI_NR_UARTS=20
 CONFIG_SERIAL_SH_SCI_CONSOLE=y
+CONFIG_I2C=y
+CONFIG_I2C_RCAR=y
 # CONFIG_HWMON is not set
 CONFIG_THERMAL=y
 CONFIG_RCAR_THERMAL=y