Not close gEfiEndOfDxeEventGroupGuid event in ReadyToLock event notify because PI spec doesn't say gEfiEndOfDxeEventGroupGuid must be notified before ReadyToLock event.

Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@14150 6f19259b-4bc3-4df7-8a09-765794883524