configs: at91: sam9x60ek: Enable DM based nand driver

Enable Device model supported NAND driver and remove legacy Atmel NAND
driver.

Signed-off-by: Balamanikandan Gunasundar <balamanikandan.gunasundar@microchip.com>
diff --git a/configs/sam9x60ek_mmc_defconfig b/configs/sam9x60ek_mmc_defconfig
index f83cbf6..268a485 100644
--- a/configs/sam9x60ek_mmc_defconfig
+++ b/configs/sam9x60ek_mmc_defconfig
@@ -52,6 +52,8 @@
 CONFIG_ENV_IS_IN_FAT=y
 CONFIG_ENV_FAT_DEVICE_AND_PART="0:1"
 CONFIG_SYS_RELOC_GD_ENV_ADDR=y
+CONFIG_REGMAP=y
+CONFIG_SYSCON=y
 CONFIG_CLK=y
 CONFIG_CLK_CCF=y
 CONFIG_CLK_AT91=y
@@ -61,15 +63,16 @@
 CONFIG_AT91_GPIO=y
 CONFIG_DM_I2C=y
 CONFIG_SYS_I2C_AT91=y
+CONFIG_ATMEL_EBI=y
+CONFIG_MFD_ATMEL_SMC=y
 CONFIG_I2C_EEPROM=y
 CONFIG_MICROCHIP_FLEXCOM=y
 CONFIG_MMC_SDHCI=y
 CONFIG_MMC_SDHCI_ATMEL=y
 CONFIG_MTD=y
+CONFIG_DM_MTD=y
 CONFIG_MTD_RAW_NAND=y
-CONFIG_NAND_ATMEL=y
-CONFIG_ATMEL_NAND_HW_PMECC=y
-CONFIG_PMECC_CAP=8
+CONFIG_DM_NAND_ATMEL=y
 CONFIG_SYS_NAND_ONFI_DETECTION=y
 CONFIG_DM_SPI_FLASH=y
 CONFIG_SF_DEFAULT_SPEED=50000000