Move Capsule.h into MdePkg\Include\Protocol directory because Capsule is defined in PI1.0a.
Merge WorkingBlockHeader.h into SystemNvDataGuid.h
Remove unused NvDataFvHob.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@7606 6f19259b-4bc3-4df7-8a09-765794883524