mfd: add probing support for cloverview

mfd: add probing support for cloverview

BZ: 15592

Cloverview SOC use different PCI Device ID for HS-UART hence existing
HS-UART driver won't be successfully probed on Cloverview SOC.

This patch adds HS-UART probing support for Cloverview SOC

Change-Id: Ic6ee5b73239445b81758a7dac26b2c5121fb472e
Signed-off-by: Leonard D Mai <leonard.mai@intel.com>
Tested-by: Siva Prasath Ponnusamy <siva.prasath.ponnusamy@intel.com>
Reviewed-on: http://android.intel.com:8080/25452
Reviewed-by: Yang, Bin <bin.yang@intel.com>
Reviewed-by: Gross, Mark <mark.gross@intel.com>
Tested-by: Seibel, Eric <eric.seibel@intel.com>
Reviewed-by: buildbot <buildbot@intel.com>
Tested-by: buildbot <buildbot@intel.com>