OOM fixe to allow smooth RAM MNG + horrable mistake fix!

*we have auto adj code, so we must not allow any access to adj file.
*fixed init service was marked as KILL NOW! oom_score_adj = 1000 is
oom_adj = 15 highes OOM selected to be killed! this was my mistake :(
*tuned oom_kill_allocating_task to be ON with screen on and off when screen off
to save power.

now after long test OOM working GREAT! no more lags and no SODS.