2) OemHookStatusCodeLib and SerialPortLib class and null instance;
3) Remove all referenced code from EdkModulePkg,EdkNt32Pkg.
4) Add Nt32OemHookStatusCodeLib.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@1068 6f19259b-4bc3-4df7-8a09-765794883524