This adds DTB to kernel and that way makes it possible to easily boot
initramfs image and also kernel.
The sequence to boot initramfs on Omnia is then just:
env set bootargs earlyprintk console=ttyS0,115200
dhcp 0x1000000 192.168.1.1:openwrt-mvebu-cortexa9-cznic_turris-omnia-initramfs-kernel.bin
bootz 0x1000000
Without this change kernel boot won't proceed and is stuck on "Starting
kernel".
Signed-off-by: Karel Kočí <karel.koci@nic.cz>
[fixed From: to match with SoB:]
Signed-off-by: Petr Štetiar <ynezz@true.cz>