healthd: Fixups for systems without batteries or removable batteries
* Replace unnecessary warnings about missing attributes with a more
informative message when no battery devices provided by the system.
* Turn off periodic battery checks when no battery devices (thereby
reducing unnecessary kernel log spam).
* Replace battery properties in log messages with a more informative
message when no battery is provided or the battery is removed.
Change-Id: I68a514aa7315ae2b5d22cb8861d3c9b1b38035a1
2 files changed