[Port from R2]Fuel Gauging : Port MSIC Fuel Gauging driver to R3

[Port from R2]Fuel Gauging : Port MSIC Fuel Gauging driver to R3

BZ: 21080

This patch is to port the coloumb counter based Medfield
MSIC Fuel Gauging Driver from R2.

Change-Id: I54cd82add2abcc08b044984af28d32adc63d6995
Signed-off-by: Saranya Gopal <saranya.gopal@intel.com>
Reviewed-on: http://android.intel.com:8080/32846
Reviewed-by: Pallala, Ramakrishna <ramakrishna.pallala@intel.com>
Tested-by: Gugwad, SantoshX <santoshx.gugwad@intel.com>
Reviewed-by: buildbot <buildbot@intel.com>
Tested-by: buildbot <buildbot@intel.com>