sunxi: re-add the USB Kconfig hack broken by USB driver merge.

Signed-off-by: Michal Suchanek <hramrach@gmail.com>
sun7i: Fix pm build.

Signed-off-by: Michal Suchanek <hramrach@gmail.com>
sun7i: fix debug macro build.

Signed-off-by: Michal Suchanek <hramrach@gmail.com>
sun7i: add mach/sys_config.h

Signed-off-by: Michal Suchanek <hramrach@gmail.com>
sun7i: select PLAT_SUNXI
sun7i: merge irqs into plat-sunxi

Signed-off-by: Michal Suchanek <hramrach@gmail.com>
sunxi: fix i2c on non-sun7i

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

Signed-off-by: Michal Suchanek <hramrach@gmail.com>
Import sun7i nand driver - wip