input: Squashed commit of display-rtio patches

SAMBAR-275

input: Adjust priority

 * Bring into the desired group to get the best result.

Change-Id: I3bd031074cd7006994736b4c22d0294b6012f662

Set explicit ioprio where required

 * This is just in a couple of places. We're not going to do this
   automagically anymore as the potential for badness is too high.

Change-Id: I4df869287fdf1bbb90e87deecdecf4364f7779db