barebox is a modern bootloader, this recipe adds support for the
imx53qsb and includes patches to support both DA9053 and MC34708
based QSB (named MCIMX53-START & MCIMX53-START-R). These patches
are now mainlined in the next branch of barebox so they will
disapear in the next update (ie barebox-2012.04.0)

Signed-off-by: Eric Bénard <eric@eukrea.com>