buildroot

uboot-tools: re-generate patches to match v2016.05

They were differences against Das U-Boot versions 2015.07 and 2015.04.
Generating again helps to apply them with "git am".

Signed-off-by: Carlos Santos <casantos@datacom.ind.br>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>