am 07a554bf: am 493dad96: libcutils: Add abstracted support for setting scheduler policies Also changes the background policy to use SCHED_BATCH. IDLEPRIO can cause 100% starvation.

Merge commit '07a554bf1855471f62ece238191bdf7a51f9d589'

* commit '07a554bf1855471f62ece238191bdf7a51f9d589':
  libcutils: Add abstracted support for setting scheduler policies