firmware: drop the imx subdir ...

We don't intend to ship any files in this directory, so there is no
risk of the directory getting too crowded over time. Drop the subdir
as this makes it easier for a outer build system to drop all the
needed firmwares into the correct directory.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Documentation: imx8mq-evk: add instructions for HDMITX firmware ...

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Documentation: imx8mq-evk: point to current version of the firmware ...

There were some updates to the i.MX8MQ DDR training firmware, so better
point to the current version.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Documentation: imx8mq-evk: Pass the full path for file names ...

Passing the full path of the referenced files make the text
clearer.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Documentation: imx8mq-evk: Fix typo ...

Correct form is "obtain them".

Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ARM: i.MX8: Add i.MX8mq EVK support ...

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>