2, Move PcdPlatformBootTimeout to IntelFrameworkModulePkg.
3, Remove BdsLibGetTimeout() interface from GenericBdsLib, because the PCD PcdPlatformBootTimeout will take care of persistent for time out value.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@7724 6f19259b-4bc3-4df7-8a09-765794883524