dkms: base configuration and Makefile.

DKMS system uses a configuration file and expects a Makefile to build kernel
modules. This changeset provides a basic configuration file and a simple
Makefile to buidl the modules from VMware proprietary tool.
3.7 kernel: link a header for compatibility.

The 3.7 kernel releases moves the version.h header to another location and
current VMware tool is not able to find it. The Makefile now links the header to
let the tool build correctly.