sox: upgraded package to upstream

Upgraded media-sound/sox to version 14.4.2-r1 on amd64

BUG=b:123010582,chromium:925647
TEST=Build for guado board after patching cr:796060 which
builds the media-sound/sox package. Ran unit test:

sudo ~/trunk/chromite/bin/test_image \
  ../build/images/guado/latest/chromiumos_test_image.bin \
  SymbolsTest.TestImportedSymbolsAreAvailable

Change-Id: Idfb9a8ead5b213627939f43db2d76caeccd5b9a9
Reviewed-on: https://chromium-review.googlesource.com/1431972
Commit-Ready: Brandon Mayer <bmayer@chromium.org>
Tested-by: Brandon Mayer <bmayer@chromium.org>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
(cherry picked from commit 58d0c42100a10dde6287486219eabc9a4976a20f)
Reviewed-on: https://chromium-review.googlesource.com/c/1443971
Commit-Queue: Brandon Mayer <bmayer@chromium.org>
Trybot-Ready: Brandon Mayer <bmayer@chromium.org>
18 files changed