nassh 0.8.27.7: Rebuild nacl ssh plugin.

* Update to latest build of plugin to fix getsockname errors.

Change-Id: I33f3bda3e9acbe73014c7f33928662cf6e0d1250
Reviewed-on: https://chromium-review.googlesource.com/201872
Reviewed-by: Robert Ginda <rginda@chromium.org>
Tested-by: Robert Ginda <rginda@chromium.org>