Add strings for voice interaction OOBE error screen

Add strings for voice interaction OOBE error screen, which will be shown
when the voice interaction is disabled either for the locale or the
account.

BUG=749900,747496

Change-Id: Id31a27690af6974b3e23eeeaced617c295020293
Reviewed-on: https://chromium-review.googlesource.com/591635
Reviewed-by: Vladislav Kaznacheev <kaznacheev@chromium.org>
Commit-Queue: Yue Li <updowndota@chromium.org>
Cr-Commit-Position: refs/heads/master@{#490493}
1 file changed