power: pm8921-charger: Allow setting -ve cool/warm temperature

The current code assumes that the cool or warm battery temperature
can only be +ve numbers. Remove this restriction by allowing -ve
temperature settings.

Change-Id: I3c54b854a8fdf934efcf1ff21b36c7a0f763692a
CRs-Fixed: 320660
Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
2 files changed