bluetooth hardware definition file is needed to be pushed
onto the device for CTS system features test to pass.
Change-Id: I52584cd15ee87c727cbc6f0558e009cc7feaf1c6
Add a common.mk file that can be included
by all targets. Target specific defines
can be overridden if needed.
Change-Id: I6f43f46ff93abe605e6d8af40cf087de4a3d5dc3