Convert the binding to DT schema format. Also update the binding
to fix shortcomings
* Add "nxp,kinetis-k20" fallback compatible
* add programming SPI interface and reset GPIO
* add main clock
* add voltage supplies
* drop spi-max-frequency from required properties,
driver will setup max. frequency
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Link: https://lore.kernel.org/r/20210802172309.164365-2-sebastian.reichel@collabora.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
