Add a phony "nothing" goal that reads the makefiles but doesn't try to build anything.
Add a phony "nothing" goal that reads the makefiles but doesn't try to build anything.

Change-Id: Idac551e5c796321e993b94761f5cbf5b55c1a994

xorware/android_build,xorware/android_build,xorware/android_build,xorware/android_build,xorware/android_build