Switch to API level 17 so that NoiseField can build.

Bug: 16031597
Change-Id: I207078fafdfce0300b4789ce685fa37bb88ca959
(cherry picked from commit ab1cb5bb92f8f940a5f73a3057ad1ddf7aa8a356)
Merge "Switch to API level 17 so that NoiseField can build."