Created attachment 67937 [details]
patch for barts and caicos mobility

Tested on barts, not caicos. It's restricted to only the power state profiles
that I have data on so far, and falls back to the r600 profile for everything
else. The mobility profile assumes the laptop will be plugged in when in
multi-monitor mode, and so it puts it in performance mode for mid and high.

I want to sort out dynpm too, but dynpm seems to be a huge WIP at the moment,
as it just disables it completely if there is more than one monitor. With a
single monitor, NI is the same as r600, so it can use the same dynpm.