configs/kontron_mx6ul_defconfig: add support for mtd partitions (mtdparts)

configs/kontron_mx6ul_defconfig

@@ -61,6 +61,12 @@ CONFIG_BOOTCOUNT_BOOTLIMIT=3
 CONFIG_DM_I2C=y
 CONFIG_DM_MMC=y
 CONFIG_FSL_USDHC=y
+#mtd devices
+CONFIG_FDT_FIXUP_PARTITIONS=y
+CONFIG_CMD_MTDPARTS=y
+CONFIG_MTD_PARTITIONS=y
+CONFIG_MTDIDS_DEFAULT="nor0=spi1.0,spi-nand0=spi4.0""
+CONFIG_MTDPARTS_DEFAULT="mtdparts=spi1.0:128k(spl),832k(u-boot),64k(env);spi4.0:-(UBI)"
 CONFIG_MTD=y
 CONFIG_DM_MTD=y
 CONFIG_MTD_SPI_NAND=y
@@ -69,6 +75,7 @@ CONFIG_SF_DEFAULT_BUS=1
 CONFIG_SF_DEFAULT_MODE=0
 CONFIG_SF_DEFAULT_SPEED=50000000
 CONFIG_SPI_FLASH_MACRONIX=y
+CONFIG_SPI_FLASH_WINBOND=y
 CONFIG_SPI_FLASH_MTD=y
 CONFIG_PHYLIB=y
 CONFIG_PHY_MICREL=y