w83627hf: ASL include containing virtual device tree of the SuperIO

w83627hf: ASL include containing virtual device tree of the SuperIO

Add a ACPI Source Language snippet to superio/w83627hf which maps the
SuperIO and most of the logical devices to PnP devices, exposing
configuration options and chip power management to the OS.
Written using the Winbond W83627HF/F datasheet.

Change-Id: I1108d29b341ef78fe7f1e574f98b680aada39daf
Signed-off-by: Christoph Grenz <christophg+cb@grenz-bonn.de>
Reviewed-on: http://review.coreboot.org/223
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marcj303@gmail.com>