verity: Track the libsparse API change.

libsparse is updating the 'len' parameter, from 'int' to 'size_t', in
the callback parameter of sparse_file_callback(). The value represents
the chunk size, which could be legitimately larger than INT_MAX.

Bug: 78432315
Test: `m dist` with aosp_marlin-userdebug
Change-Id: I0c4b9465fd145b6a35d8228430362d25b8fd4c6e
2 files changed