Use blocklist sub-property in sanitize am: aace863d38 am: f2e625dab6 am: a08f1200c9 am: ef36b05518

Original change: https://android-review.googlesource.com/c/platform/external/libexif/+/1375089

Change-Id: I5a6f4590bd906af9f5c5913e5b133e008b226b15