[CONFIG] exclude E226 from pep8.py

E226 is excluded per default. Don't know why this is necessary.
PEP suggests adding whitespace around the operators with the lowest
priority (only) if operators with different priorities are used.

Change-Id: I75dd8a1234fa5f6750a6df16bc07d5ef2b294868
Merge "[CONFIG] exclude E226 from pep8.py"