board: novena: convert to DM_I2C

Conversion to DM_I2C is mandatory, enable DM_I2C
to disable board removal warning. Convert EEPROM
and IT6251 access to use DM_I2C API.

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Reviewed-by: Marek Vasut <marex@denx.de>
diff --git a/configs/novena_defconfig b/configs/novena_defconfig
index 322689e..dd3541b 100644
--- a/configs/novena_defconfig
+++ b/configs/novena_defconfig
@@ -67,7 +67,7 @@
 CONFIG_BOUNCE_BUFFER=y
 CONFIG_DWC_AHSATA=y
 CONFIG_LBA48=y
-CONFIG_SYS_I2C_LEGACY=y
+CONFIG_DM_I2C=y
 CONFIG_SPL_SYS_I2C_LEGACY=y
 CONFIG_SYS_I2C_MXC=y
 CONFIG_FSL_USDHC=y