EM/THERMAL: Enable thermal sensor driver for Clover Trail platform

EM/THERMAL: Enable thermal sensor driver for Clover Trail platform

BZ: 30799

This patch adds the necessary changes to enable thermal sensor driver for
clover trail platform. Platform specific changes are also added to the driver
making it a common driver for both Medfield and CT platform.

Change-Id: I4523dea793d57737687f8b7974d47957985726e2
Signed-off-by: Shravan <shravan.k.b.m@intel.com>
Reviewed-on: http://android.intel.com:8080/42849
Reviewed-by: Krishna R, Ananth <ananth.krishna.r@intel.com>
Reviewed-by: R, Durgadoss <durgadoss.r@intel.com>
Reviewed-by: Pallala, Ramakrishna <ramakrishna.pallala@intel.com>
Tested-by: Kallappa Manjanna, MadhukumarX <madhukumarx.kallappa.manjanna@intel.com>
Reviewed-by: buildbot <buildbot@intel.com>
Tested-by: buildbot <buildbot@intel.com>