Platform/QuarkPlatformPkg: Add VariablePolicy resolutions

Add resolutions for
- VariablePolicyLib
- VariablePolicyHelperLib
- VariablePolicyLib (DXE_RUNTIME_DRIVER)

Cc: Kelly Steele <kelly.steele@intel.com>
Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Kelly Steele <kelly.steele@intel.com>