Fix CreateDeviceList with empty data
Fix CreateDeviceList with empty data

Summary: Ensures that we don't create devices without any info, they are completely ignored.

Reviewed By: fejese

Differential Revision: D22375732

fbshipit-source-id: 829e1ba545d2f4e7f3a6842366420c78bdfcd64c

facebook/FBSimulatorControl,facebook/FBSimulatorControl,facebook/FBSimulatorControl,facebook/FBSimulatorControl,facebook/FBSimulatorControl