Add integer sanitization to libexif.

This turns integer sanitization on in libexif. A blacklist file is added
to prevent sanitization of a function which was seen to overflow during
testing but this seems to be intentional.

Bug: 67013630
Bug: 62343822
Test: Took pictures and videos.
Test: Mounted as PTP and MTP, browsed and downloaded files.
Change-Id: I7c2d2acead75797fba06488ef2e87a5c0fc2b66e
2 files changed