media-libs/tiff: pull in upstream security fixes

Pulled from Gentoo which pulled from upstream tiff.

BUG=chromium:706349
TEST=precq passes

Change-Id: I54083d2061ac14c9f77bd71ffea99703ebf36da3
Previously-Reviewed-on: https://chromium-review.googlesource.com/473848
(cherry picked from commit 8facc367500c0b8a2a7140b7fe2750adc9799c4e)
Reviewed-on: https://chromium-review.googlesource.com/478612
Reviewed-by: Jorge Lucangeli Obes <jorgelo@chromium.org>
Commit-Queue: Mike Frysinger <vapier@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
39 files changed