enable E713 in pep8 tests
enable E713 in pep8 tests

This change update the code style to enable the E713 check (test for membership
should be ‘not in’)

Partial-Bug: 1329017

Change-Id: I96f8b734db5964ef46d0911cb5f6e0b8c33c3119

budnyjj/ofagent,yamt/networking-ofagent,yamt/networking-ofagent-old3,budnyjj/ofagent