Based on prior work by @dcpleung. It's suboptimal, but it provides a
working starting point for ACRN work. The x86 board/SoC abstractions
really need to be refactored to make this "board" (and other x86-based
"boards", both extant and future) cleaner and easier to maintain. Punt.
Signed-off-by: Charles E. Youse <charles.youse@intel.com>