Android: restart preview when image capture fails

The preview must be restarted after taking a picture but were doing
that only when the capture succeeded. We now also do it when it fails.

Change-Id: I8bfff06a811d9333220050e5e81561438f5a3786
Reviewed-by: Christian Stromme <christian.stromme@qt.io>

src/plugins/android/src/mediacapture/qandroidcamerasession.cpp

@@ -563,6 +563,9 @@ void QAndroidCameraSession::onCameraTakePictureFailed()
 {
     emit imageCaptureError(m_currentImageCaptureId, QCameraImageCapture::ResourceError,
                            tr("Failed to capture image"));
+
+    // Preview needs to be restarted and the preview call back must be setup again
+    m_camera->startPreview();
 }
 
 void QAndroidCameraSession::onCameraPictureExposed()