Merge "ActivityManagerService: ensure updateOomAdjLocked gets called early" into pi-dev

        // bind background thread to little cores

        // this is expected to fail inside of framework tests because apps can't touch cpusets directly

        // make sure we've already adjusted system_server's internal view of itself first

        updateOomAdjLocked();

        try {

            Process.setThreadGroupAndCpuset(BackgroundThread.get().getThreadId(),

                    Process.THREAD_GROUP_BG_NONINTERACTIVE);