Fix gn_args enable_archive_compression -> skip_archive_compression

I used wrong config flag name in https://chromium-review.googlesource.com/936344
skip_archive_compression is the flag I need to set.
https://chromium-review.googlesource.com/901402

Bug: 808910
Change-Id: I01118ee9081dddfec6d802c860e41434682afcb2
Reviewed-on: https://chromium-review.googlesource.com/939181


Reviewed-by: Dirk Pranke <dpranke@chromium.org>
Commit-Queue: Takuto Ikuta <tikuta@google.com>
Cr-Commit-Position: refs/heads/master@{#539603}