update enc2 example to test gpr8 encoding
update enc2 example to test gpr8 encoding

Change-Id: I6b95c6e70ce3d51fe14617dbfe8718824bcf4c4b
(cherry picked from commit 7e8fbf6199619d42f524a15b7a9f241023c7e552)

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