am 9ce3df55: Merge change I2c6e54e4 into eclair

Merge commit '9ce3df55bab12bea563faf764f7beb3555d5942c' into eclair-mr2

* commit '9ce3df55bab12bea563faf764f7beb3555d5942c':
  Throttle proximity sensor values so we do not process more than one change a second.