dt-bindings: mtd: update references from partition.txt to mtd.yaml

Commit f902baa917b6 ("dt-bindings: mtd: Remove useless file about
partitions") removed the file partition.txt. Hence, in this commit, the
lines mentioning this file are updated to reference mtd.yaml, which now
includes partition{,s}.yaml.

Signed-off-by: Nayab Sayed <nayabbasha.sayed@microchip.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20240208-partition-txt-v1-1-4398af3b7bb2@microchip.com

dt-bindings: mtd: fsl-upm-nand: Deprecate chip-delay and fsl, upm-wait-flags

Those properties are no longer parsed by the driver which is being passed
those information by the core now. Let's deprecate them.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200603134922.1352340-11-boris.brezillon@collabora.com

mtd: Move fdt partition documentation to a seperate file

Partitions are described in the same way for all mtd devices when using
devicetree, move the documentation to a separate file and add references
to it.

Signed-off-by: Jamie Lentin <jm@lentin.co.uk>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>

Fix common misspellings

Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>

dt: Move device tree documentation out of powerpc directory

The device tree is used by more than just PowerPC. Make the documentation
directory available to all.

v2: reorganized files while moving to create arch and driver specific
directories.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>