UefiCpuPkg/PiSmmCpuDxeSmm: implement non-stop mode for SMM

UefiCpuPkg/PiSmmCpuDxeSmm: implement non-stop mode for SMM

Since SMM profile feature has already implemented non-stop mode if #PF
occurred, this patch just makes use of the existing implementation to
accommodate heap guard and NULL pointer detection feature.

Cc: Eric Dong <eric.dong@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Ruiyu Ni <ruiyu.ni@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Jian J Wang <jian.j.wang@intel.com>
Reviewed-by: Eric Dong <eric.dong@intel.com>
Acked-by: Laszlo Ersek <lersek@redhat.com>