move appops to app details screen

i don't think this belongs as a settings header when there's already one for apps.
I will be adding a shortcut to longpress in recents and i already added one to the
actionbar menu in apps.

Change-Id: Ib86551070ef3e95a8d4ba49311c4f7ea1e8f3256
Merge "move appops to app details screen" into kk44