1. Update PiSmmIpl.c DoCommunicate() to prevent exception in case call SmiManage directly if SMRAM is closed or locked. That case causes exception.
2. Update PiSmmCore.c SmmEntryPoint(). It is not required to save/restore InSmm. Because SMM is non-reentrant.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10131 6f19259b-4bc3-4df7-8a09-765794883524