usb: misc: Add x86 dependency for Intel USBIO driver

The Intel USBIO driver is x86 only, other architectures have ACPI
so add an appropriate depenecy plus compile test.

Fixes: 121a0f83 ("usb: misc: Add Intel USBIO bridge driver")
Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
Reviewed-by: Hans de Goede <hansg@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>