* Update docs/submodules/yardstick from branch 'master'
- Merge "Fix the pylint version for pep8 tox target"
- Fix the pylint version for pep8 tox target
Change-Id: I5e1c169a6ca13b3f46129b2c4a15ccbab2677a63 Signed-off-by: Martin Banszel <martinx.banszel@intel.com>