sunxi: unify cubieboard led assignment.

Signed-off-by: Michal Suchanek <hramrach@gmail.com>
ARM: sunxi: dts: Add ahci node to allwinner A10 and A20 socs
ARM: sunxi: dts: Add ahci support for the cubieboard3, the CubieTruck

Signed-off-by: Oliver Schinagl <oliver@schinagl.nl>

Conflicts:
	arch/arm/boot/dts/sun7i-a20-cubietruck.dts
rename ahci sriver sysfs entry

Signed-off-by: Michal Suchanek <hramrach@gmail.com>