expand AlwaysOnHotwordDetection.startRecognition

an additional byte[] data to the AlwaysOnHotwordDetector
startRecognition class. This data is use a pass-through
to the system voice engine.

Test: atest CtsVoiceInteractionTestCases
CTS-Coverage-Bug: 215375531
Bug: 224638834
Change-Id: I74be65b8718c0d10c69e69ad11a7014cdf55d873