add host hyperthreading filter

Select hyper-threading enabled hosts accoring to cpu_threads_policy

Change-Id: Ic95a875b2d585189a03f1a49a5fb33e74dfb0d62
thought about cpu pining implementation.

some pseudo code to start somewhere..

Change-Id: I49ccb5be755678bcf621d33c609f1946d87c4a67