We have only two possible states with so many names and combinations that
might be confusing.

1 - Main link active / enabled / stand by / on
2 - Main link disabled / off / full off

Let's start organizing it by fixing a inverted logic when setting the sink bit.
Signed-off-by: NRodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: NDurgadoss R <durgadoss.r@intel.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>