Manually updating Chrome OS orderfile name.

This patch updates the CrOS orderfile name to point to the newest
orderfile. Manual CL update for once, as in the future, it will
be done with an autoroller.

BUG=chromium:950627
TEST=The orderfile is tested on Chrome OS. No code is using the orderfile for now

Change-Id: If7113b9cdc1ac1c00ebb7aef91d2ded212564836
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1729962Reviewed-by: George Burgess <gbiv@chromium.org>
Commit-Queue: Tiancong Wang <tcwang@google.com>
Cr-Commit-Position: refs/heads/master@{#682980}

chromeos/profiles/orderfile.newest.txt

-chromeos-chrome-orderfile-77.0.3849.0_rc-r1.orderfile.xz
+chromeos-chrome-orderfile-field-77-3849.0-benchmark-77.0.3862.0-r1.orderfile.xz