Add a defconfig to build a 32b ARMv7-A U-Boot based firmware implementing
the subset of UEFI defined by EBBR[1], as well as a Linux OS disk image
booting with UEFI, to run on Qemu.
The generated firmware binary can also be used to install or run another OS
supporting the EBBR specification.
[1]: https://github.com/ARM-software/ebbr
Signed-off-by: Vincent Stehlé <vincent.stehle@arm.com>
Cc: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
