power: pm8921-charger: Disable BTM before entering suspend

Significant sleep current is seen with BTM enabled during suspend.

Fix this by disabling BTM before entering suspend and re-enable it
on resume. A board file option may be added to disable this feature.
By default battery temperature monitoring will be turned off on
suspend.

Change-Id: I6614dc076d8ea69f25840dd3eeef94f9739e392f
Signed-off-by: David Keitel <dkeitel@codeaurora.org>
2 files changed