gproj: Default governor to interactive

While this doesn't change the init modification from ondemand,
any kernel built for recovery defaults to using the performance governor
and I'd personally like a recovery that doesn't melt my hands.

Patchset 2: apply to all CM defconfigs (e986 already set)

Change-Id: I562e27fb761fdf62749af6bde7731c2a6ad04493