add copyright msg to ex-enc2-1.c
add copyright msg to ex-enc2-1.c

Change-Id: Id48363a51936134e10723f0149596a4b6208dbf6
(cherry picked from commit a2a6843b42862203040edd592cee09bef769e474)

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