mtd: ensure MTD/the raw NAND core are compiled when there is a NAND flash

Both symbols must be enabled when there is a raw NAND driver
selected. Also enable them when CONFIG_CMD_NAND is selected to avoid
breaking things when we'll further rework the MTD dependency
description.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Boris Brezillon <boris.brezillon@bootlin.com>
[trini: Rebase and migrate a few more boards here]
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/tec_defconfig b/configs/tec_defconfig
index b09de07..121a606 100644
--- a/configs/tec_defconfig
+++ b/configs/tec_defconfig
@@ -27,6 +27,8 @@
 CONFIG_DEFAULT_DEVICE_TREE="tegra20-tec"
 CONFIG_ENV_IS_IN_NAND=y
 CONFIG_SYS_RELOC_GD_ENV_ADDR=y
+CONFIG_MTD=y
+CONFIG_MTD_RAW_NAND=y
 CONFIG_SPL_DM=y
 CONFIG_DM_PMIC=y
 CONFIG_DM_REGULATOR=y