Include BIOS specific definitions when required.

This is a noop for host/chroot environment. When compiling
in the firmware space the standard include files will not be
included, the definitions will be supplied by the BIOS,
through the new file (firmware/include/sysincludes.h).

Testing
=======

RUNTESTS=1 make

in the top level directory succeeds, confirming that the
tree compiles cleanly and the unit tests pass.

Review URL: http://codereview.chromium.org/2862019
3 files changed