fio: upgraded package to upstream [2.1.8-r1]

Upgraded sys-block/fio to version 2.1.8-r1 on amd64, x86

BUG=chrome-os-partner:24465,chromium:338756
CQ-DEPEND=CL:196322
TEST=Check on falco and peach-pi:
TEST= Rand hardware_StorageFio.quicktest

Change-Id: Ie5c17a44628d450086184c45aeaf2a6aa8bdf701
Reviewed-on: https://chromium-review.googlesource.com/195409
Tested-by: Gwendal Grignou <gwendal@chromium.org>
Commit-Queue: Gwendal Grignou <gwendal@chromium.org>
Reviewed-by: Gwendal Grignou <gwendal@chromium.org>
5 files changed