Fix E128 violations and re-enable gating

E128 got stricter in hacking 0.9, so fix new violations and
re-enable gating.

Change-Id: Id061f154f97d78bbbcd8704e6213034cce90a841
Fix E251 violations and re-enable gating

E251 got stricter in hacking 0.9, so fix new violations and
re-enable gating.

Change-Id: Idbc0a85d6204f5707d17f4bfd4d98199c1edb333
Fix E265 violations and re-enable gating

E265 got stricter in hacking 0.9, so fix new violations and
re-enable gating.

Change-Id: I64159facb0698c19ea0689e9b1dd5266615ddb45