roms: Added git submodule for u-boot-sam460 (firmware for sam460ex)
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
authored by BALATON Zoltan and committed by David Gibson 8 years ago b41a162c 7ccc89b5