healthd: Check if battery device exists instead of charger drivers before setting fake properties.
am: 9cb3d3ccf4

* commit '9cb3d3ccf49bf0fd484563fbf611c68789d5b8a9':
  healthd: Check if battery device exists instead of charger drivers before setting fake properties.

Change-Id: I521f7a7d097da915e40a273d73a655aa01ea397e