Unify usb peripherial controller choice.

kconfig does not seem to like mixed choices so make all USB peripherial
drivers boolean until sunxi USB grows mudule support.

Signed-off-by: Michal Suchanek <hramrach@gmail.com>
sunxi: add kitchensink to defconfig.

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