gitignore: add more generated files to ignore

Signed-off-by: Paul Reioux <reioux@gmail.com>
compilation fix up for derpy source from Moto

Signed-off-by: Paul Reioux <reioux@gmail.com>
logger: Salvage some RAM
Signed-off-by: shivamk11 <shivamk11@gmail.com>
defconfig: Enable conservative governor