Only include what the header itself needs. The big fish here is
intel-gpu-tools.h. More will follow.
One ugly thing removed here is the duplicated GEN6_TD_CTL #define, one
of which was broken.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This makes it a bit more like the kernel, so we can go poke at DPIO and
other IOSF regs a bit more easily.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
