This is a preparation patch for switching all sunxi boards over to using
the driver model.

Note that rather then defining both CONFIG_DEFAULT_DEVICE_TREE (for u-boot)
and CONFIG_FDTFILE (for the kernel), this commit simply replaces all
CONFIG_FDTFILE defconfig settings with CONFIG_DEFAULT_DEVICE_TREE and
uses CONFIG_DEFAULT_DEVICE_TREE for setting the default fdtfile env value
in sunxi-common.h .
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Reviewed-by: NSimon Glass <sjg@chromium.org>
Acked-by: NIan Campbell <ijc@hellion.org.uk>

The iNet 3W is an A10 tablet with 1GiB RAM and a 1024x768 screen.

Also see: http://linux-sunxi.org/INet_3WSigned-off-by: NPaul Kocialkowski <contact@paulk.fr>
Acked-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NHans de Goede <hdegoede@redhat.com>