overlay: turn on lidControlsSleep

Initial user reports claimed that this did not allow the smart cover to work -
now users are claiming it does.  I finally found a magnet, and this indeed
does work.

Whoever said it didn't work derped us hard.  :(

Change-Id: I5d600f7fcd781631a079beefaee5e720286a4a16
Merge remote-tracking branch 'cm/cm-10.1' into jb-mr1