healthd: Check if battery device exists instead of charger drivers before setting fake properties. am: 9cb3d3ccf4 am: f2ca669e80 am: 6e394f0f6c
am: 4b4411e832

* commit '4b4411e8321268ee6e4027f7430560e797bca366':
  healthd: Check if battery device exists instead of charger drivers before setting fake properties.

Change-Id: I53335276442a5c009aa5f3fe8cd9218cf9c78125