MFLD/Battery: Fix charging status reporting issue incase of OverTemp

MFLD/Battery: Fix charging status reporting issue incase of OverTemp

BZ: 32569

This patch fixes the battery status reporting issue for high and
low temperatures. This patch also cleans up the status monitoring
worker by removing the code related to battery status computation
logic which was not required in status monitioring worker.

Change-Id: I6c5f628896f66a08fb6096ee74883b3e7ea70863
Signed-off-by: Ramakrishna Pallala <ramakrishna.pallala@intel.com>
Reviewed-on: http://android.intel.com:8080/45912
Reviewed-by: Tc, Jenny <jenny.tc@intel.com>
Tested-by: Kallappa Manjanna, MadhukumarX <madhukumarx.kallappa.manjanna@intel.com>
Reviewed-by: buildbot <buildbot@intel.com>
Tested-by: buildbot <buildbot@intel.com>