Allowing autobrightness to be enabled in the temporary brightness

state

This fixes the issue where the brightness wouldnt change when the slider
is moved when autobrightness is enabled.

Bug: 262355667
Test: Manually move the slider with autobrightness enabled, and confirm
that the brightness changes and do not return back to the initial point.

Change-Id: Ic21b6c42c446ec4fca0e4cc203ef5e9c5211ffcd