enc2gen: add _e to evex names. reduces duplicate numbered fn names
enc2gen: add _e to evex names. reduces duplicate numbered fn names

Change-Id: I2675207e3d32db4bb2942468b7f2ee5fc08a1eeb
(cherry picked from commit 5b6e52e5272bb9848cef95f999e744f960b90fd5)

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