encgen: vzeroall,vzeroupper
encgen: vzeroall,vzeroupper

Change-Id: I282c7d9b20c4493ae000d935b4379635567ad2df
(cherry picked from commit 0060d37a07ff3b1349090ce7de803f9f5eddb473)

intelxed/xed,intelxed/xed,intelxed/xed,intelxed/xed