UefiCpuPkg: Add missing components to UefiCpuPkg.dsc

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>