Add fuzzer for DepthPhotoProcessor

This fuzzer is a distilled version of the DepthProcessorTest
unit test. The corpus comes from the corpus for libexif in
tools/security/fuzzing/orphans/libexif/corpus

Bug: 170243740
Test: Builds and runs on emulator
Change-Id: I5b5113333242052192958d57bec73cbc47eb195c