Allow lower brightness

Signed-off-by: Michael Bestas <mikeioannina@gmail.com>

Change-Id: I209402500784809392bef35fb2b160173c21c261
Cleanup & update ueventd.semc.rc

Signed-off-by: Michael Bestas <mikeioannina@gmail.com>

Change-Id: I561fc9172e9f099a8d468988bf907fda0e5752da
Allow minimum brightness

Signed-off-by: Michael Bestas <mikeioannina@gmail.com>

Change-Id: I523390c25f9401371d9517f9e3ba4b4959ba8520