Add the optargs variable so that we can set optional arguments while
booting.
Signed-off-by: Nathan Morrisson <nmorrisson@phytec.com>
Signed-off-by: Daniel Schultz <d.schultz@phytec.de>
This boot logic allows to boot a Kernel image, Device-Tree blob
and a initramfs from an external OSPI/QSPI NOR flash.
Signed-off-by: Daniel Schultz <d.schultz@phytec.de>