1. Security hole in LoadImage() when EFI_SECURITY_VIOLATION status is returned.
2. Load.efi to load 32bit driver in 64bit platform causing system hang.
3. Fix for PCI multi-segment support.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10278 6f19259b-4bc3-4df7-8a09-765794883524
For gBS->LoadImage() if the return status is EFI_SECURITY_VIOLATION, the image handle may not be NULL.
Shell environment should not have the assumption that the output ImageHandle must be NULL if the error status is returned by gBS->LoadImage().
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9838 6f19259b-4bc3-4df7-8a09-765794883524