Buttons: Prevent toggling disable hardware keys too quickly

* Apparently the phone window manager _really_ doesn't like it when you
  do toggle this too quickly.

Change-Id: I936c6554927ffcdc7c78edaf25f71aedba497ac8
Settings: Fix Quiet Hours Tile long press action

Change-Id: Ic068e0461bc28d08bf07d6353ca3b15a769a7229
Merge "Buttons: Prevent toggling disable hardware keys too quickly" into cm-11.0
Merge cm 'branch cm-11.0' into dcm-11.0_wip