HACK: android: Set cfg.bufferCount to some value

Otherwise Android framework will fail to configure camera.

Change-Id: I8d89a8ae52b248781c1fce9e890d3a6fc258e4f4
Signed-off-by: Roman Stratiienko <r.stratiienko@gmail.com>

src/android/camera_stream.cpp

@@ -132,6 +132,9 @@ int CameraStream::configure()
 	mutex_ = std::make_unique<Mutex>();
 
 	camera3Stream_->max_buffers = configuration().bufferCount;
+	// Android requires at least one buffer
+	if (camera3Stream_->max_buffers == 0)
+		camera3Stream_->max_buffers = 1;
 
 	return 0;
 }