am 253e27ac: Optimize set_sched_policy(), which gets called in every binder call.

Merge commit '253e27acb6c9e3e0b03c59f25cdf9ecbd64bcdad' into froyo-plus-aosp

* commit '253e27acb6c9e3e0b03c59f25cdf9ecbd64bcdad':
  Optimize set_sched_policy(), which gets called in every binder call.