Fix some bugs for eventdev pipeline example.

v2:
1. Delete unused variable to fix build error
2. Reduce commit message length to fix coding style issues

v3:
1. Title improvement (Van Haaren)

v4:
1. fix core enabled bug
2. add info typo for main core

Feifei Wang (3):
  doc: fix core enabled bug for eventdev pipeline example
  examples/eventdev: add info typo for main core
  examples/eventdev: move eth stop to the end

 .../sample_app_ug/eventdev_pipeline.rst       |  5 +-
 examples/eventdev_pipeline/main.c             | 78 +++++++++++--------
 2 files changed, 47 insertions(+), 36 deletions(-)

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2.25.1