UefiCpuPkg: Add missing components to UefiCpuPkg.dsc
    
    https://bugzilla.tianocore.org/show_bug.cgi?id=2255
    
    Update UefiCpuPkg.dsc to guarantee all libraries and
    modules are always built.  Add the following components.
    
    * UefiCpuPkg/ResetVector/Vtf0/Bin/ResetVector.inf
    * UefiCpuPkg/Library/CpuCommonFeaturesLib/CpuCommonFeaturesLib.inf
    
    ResetVector.inf is a binary INF, so no source builds are
    triggered from adding this line.  However, a build with
    this component does verify the contents of the INF file.
    
    Cc: Eric Dong <eric.dong@intel.com>
    Cc: Ray Ni <ray.ni@intel.com>
    Cc: Laszlo Ersek <lersek@redhat.com>
    Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com>
    Reviewed-by: Eric Dong <eric.dong@intel.com>
    Reviewed-by: Ray Ni <ray.ni@intel.com>