Increase the kMaxNoiseProbability in voice_activity_detector_test

Because it breaks on Android.

TBR=ajm

Review URL: https://codereview.webrtc.org/1177043017.

Cr-Commit-Position: refs/heads/master@{#9467}
diff --git a/webrtc/modules/audio_processing/vad/voice_activity_detector_unittest.cc b/webrtc/modules/audio_processing/vad/voice_activity_detector_unittest.cc
index 1cc0ad6..f4ee177 100644
--- a/webrtc/modules/audio_processing/vad/voice_activity_detector_unittest.cc
+++ b/webrtc/modules/audio_processing/vad/voice_activity_detector_unittest.cc
@@ -21,7 +21,7 @@
 
 const int kStartTimeSec = 16;
 const float kMeanSpeechProbability = 0.3f;
-const float kMaxNoiseProbability = 0.07f;
+const float kMaxNoiseProbability = 0.1f;
 const size_t kNumChunks = 300u;
 const size_t kNumChunksPerIsacBlock = 3;