Add some undocumented commands to the ts102 registers file, and fix a few
typos.
Modifications to tctrl.c:
Add entrypoints to driver for open/close/ioctl/poll.
Make device work with apmd. (still no support for suspend/sleep)
Make device work with ENVSYS API.
Slightly restructure handling of events.
Add function to make microcontroller requests.
It supports RASTERCONSOLE only and the colormap support is
broken (the hardware doesn't seem to be doing what the tech.
docs. say it should be doing). But it is usable as a console
(but with blue on white as the only color choice). I figured
I'd check it in since it is somewhat usable and someone else
might figure what I screwed up in the color map support.