am 23142acf: Merge "squeeze a few more bits of randomness into /dev/random" into gingerbread

Merge commit '23142acffab69738b967812fdbdf7bbda18a44d8' into gingerbread-plus-aosp

* commit '23142acffab69738b967812fdbdf7bbda18a44d8':
  squeeze a few more bits of randomness into /dev/random