redbull: add unity task name to report fake cpu info For some unity games, no 'libunity.so' path in its mmap. An alternative way is to check the task name. The 'UnityMain' thread would go querying max cpu freq. To fool unity game, adding 'UnityMain' to sched_lib_name list. Test: build and test the 'perfect kick2' game Bug: 163293825 Change-Id: I6833ab60a733eef963f9dae942359a1c0b52d2ef