1) separate fstab mount
2) launch bootanim early
3) boottime cpuset/io tune
4) parallel slow init operations: write sysfs and insmod
After CL:
Boot time saved 330ms, bootanim triggered early before data/ mounted
Bug: 36780513
Test: walleye boots
Change-Id: I02803179746710413f4b1e2372f3550cd95d1581