Nokia RX-51: Revert back onenand defitions

In commit commit 43ede0bca7fc ("Kconfig: Migrate MTDIDS_DEFAULT /
MTDPARTS_DEFAULT") were removed definitions for onenand partitions.

Revert them back and enable needed options for onenand support.

Signed-off-by: Pali Rohár <pali@kernel.org>
2 files changed