Add a tool to work on i915 hardware in user mode

This is the beginning of a tool that transforms the i9x5 code to user
mode code. Consider this a very early stage although it does produce
two programs. Requires spatch 1.0 or greater.

To try it out, assuming you have an up-to-date spatch,
   sh transform
   make
   make broken

Please don't fall to the temptation to auto-magicize this process.
It's primitive for a reason. That said, suggestions welcome of course.

Change-Id: I0188e36637b198b06c17f6d3c714d990e88bd57d
Signed-off-by: Ronald G. Minnich <rminnich@chromium.org>
Reviewed-on: http://review.coreboot.org/1003
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>

util/i915tool/Makefile

@@ -0,0 +1,20 @@
+source=main.c pci.c final/intel_bios.c final/drm_modes.c final/i915_drv.c
+
+all: probe
+
+broken: video
+
+video: $(source) final/intel_display.c
+	cc -include video.h -Iinputs -static -g -o video $(source) \
+		-lpci final/intel_display.c
+
+probe: $(source)
+	cc -include video.h -Iinputs -static -g -o probe $(source) -lpci
+clean:
+	rm -f *.o video probe
+
+moreclean:  clean
+	rm final/* per-file-changes/* tmp/*
+
+superclean: moreclean
+	rm inputs/*