board: shc: convert to DM_I2C

Conversion to DM_I2C is mandatory, rework to remove
use of legacy I2C API.

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Reviewed-by: Heiko Schocher <hs@denx.de>
diff --git a/configs/am335x_shc_netboot_defconfig b/configs/am335x_shc_netboot_defconfig
index 5c42bf4..b25a4de 100644
--- a/configs/am335x_shc_netboot_defconfig
+++ b/configs/am335x_shc_netboot_defconfig
@@ -66,10 +66,12 @@
 CONFIG_VERSION_VARIABLE=y
 CONFIG_NET_RETRY_COUNT=10
 CONFIG_BOOTP_SEND_HOSTNAME=y
-CONFIG_SYS_I2C_LEGACY=y
+CONFIG_DM_I2C=y
 CONFIG_SPL_SYS_I2C_LEGACY=y
 CONFIG_SYS_I2C_SLAVE=0x1
 CONFIG_SYS_I2C_SPEED=400000
+CONFIG_MISC=y
+CONFIG_I2C_EEPROM=y
 CONFIG_MMC_OMAP_HS=y
 CONFIG_HSMMC2_8BIT=y
 CONFIG_PHY_ADDR_ENABLE=y