zip_archive: reject files that don't start with an LFH signature.

Bug: 64211847
Test: zip_archive_test

(cherry picked from commit c1a56dcab711a7ee238c0af865920ca51b1408a6)

Change-Id: I510fae950ee00ee2a4e1d69232f3c5c2648d1bfa
2 files changed