* Update docs/submodules/yardstick from branch 'master'
- Merge "Optimize Core usage for the sampleVNFs"
- Optimize Core usage for the sampleVNFs
Change-Id: I80aa7e796b9ca4c4881c78310860e293a4a75560 Signed-off-by: Deepak S <deepak.s@linux.intel.com> Signed-off-by: Ross Brattain <ross.b.brattain@intel.com>