QuarkPlatformPkg: Add MpInitLib reference in DSC files.

QuarkPlatformPkg: Add MpInitLib reference in DSC files.

This update is for CpuDxe consuming MP Initialize library.

v5:
  1. Update Quark DSC files to add PeiMpInitLib.

Cc: Michael Kinney <michael.d.kinney@intel.com>
Cc: Feng Tian <feng.tian@intel.com>
Cc: Kelly Steele <kelly.steele@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jeff Fan <jeff.fan@intel.com>
Reviewed-by: Michael Kinney <michael.d.kinney@intel.com>
Tested-by: Michael Kinney <michael.d.kinney@intel.com>