Increase timeouts by hw multiplier. Increase the slowdown threshold and the deadline threshold by the hw multiplier so that tests don't time out incorrectly. Test: Verified timeouts increased on devices with multipliers. Test: Unit tests pass on system with > 1 hw multiplier. Test: Unit tests pass on device with no hw multiplier. Test: Unit tests pass on host. Change-Id: I4fa52942324b6c2606913e7213c2729bcfe813e6