Add missing PCI class code definition.

Add missing PCI class code definition.
PCI22/PCI23/PCI30 spec were reviewed and the missing definitions were added to accordingly Pci22.h/Pci23.h/Pci30.h.
All other class code definitions that are not defined in PCI Local Bus specification but in PCI Code and ID Assignment specification are defined in PciCodeId.h.

Signed-off-by: Ruiyu Ni<ruiyu.ni@intel.com>
Reviewed-by: Liming Gao<liming.gao@intel.com>
Reviewed-by: Hot Tian<hot.tian@intel.com>
Reviewed-by: Elvin Li<elvin.li@intel.com>
Reviewed-by: Feng Tian<feng.tian@intel.com>
Reviewed-by: Jiewen Yao<jiewen.yao@intel.com>
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13919 6f19259b-4bc3-4df7-8a09-765794883524