configs: sam9x60ek: Enable NAND on mmc defconfig

Enable NAND on mmc defconfig for greater flexibility and for consistency
reasons. All our other boards that have a NAND flash integrated, enable
NAND regardless of the type of the defconfig.

Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
diff --git a/configs/sam9x60ek_mmc_defconfig b/configs/sam9x60ek_mmc_defconfig
index e97b20a..e5edf45 100644
--- a/configs/sam9x60ek_mmc_defconfig
+++ b/configs/sam9x60ek_mmc_defconfig
@@ -25,6 +25,8 @@
 CONFIG_CMD_DM=y
 CONFIG_CMD_I2C=y
 CONFIG_CMD_MMC=y
+CONFIG_CMD_NAND=y
+CONFIG_CMD_NAND_TRIMFFS=y
 # CONFIG_CMD_SETEXPR is not set
 CONFIG_CMD_DHCP=y
 CONFIG_CMD_MII=y
@@ -48,6 +50,11 @@
 CONFIG_DM_MMC=y
 CONFIG_MMC_SDHCI=y
 CONFIG_MMC_SDHCI_ATMEL=y
+CONFIG_MTD=y
+CONFIG_MTD_RAW_NAND=y
+CONFIG_NAND_ATMEL=y
+CONFIG_ATMEL_NAND_HW_PMECC=y
+CONFIG_PMECC_CAP=8
 CONFIG_PHY_MICREL=y
 CONFIG_DM_ETH=y
 CONFIG_MACB=y