Add a fuzz target to test DNG image parsing in dng_sdk. am: 0c2c0ca07a am: 49be9325f2 am: f4e068b00e

Original change: https://android-review.googlesource.com/c/platform/external/dng_sdk/+/1487679

Change-Id: If8b5c82874c353315bcf6b8a9147141f00777fc5