publicsuffix: update table to latest list from publicsuffix.org

Update the list to revision 38b238d6324042f2c2e6270459d1f4ccfe789fba
(2017-08-28T20:09:01Z).

Change-Id: I80aca3aa21255176e0b6a4c3f8b1b755d0ee2c8e
Reviewed-on: https://go-review.googlesource.com/61890
Reviewed-by: Nigel Tao <nigeltao@golang.org>
Run-TryBot: Nigel Tao <nigeltao@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>