Use NO_VALUE in ground truth of exif test when no valid value from exiftool

Change-Id: Ia33edf0aba8562eb2dbd61b5753657f245bf7310
1 file changed
tree: 27a37fd25b8836492e4ad509b09f6bae7aeb9deb
  1. res/
  2. src/
  3. src_pd/
  4. tests/