portage-stable: add sysbench tools

Adding sysbench tools to our tree for benchmark purpose. Also add
luajit and concurrencykit as sysbench depends on them.

BUG=chromium:814088
TEST=emerge-betty sysbench.

Change-Id: I872e1fc37b8c8133e91de061abb9f7b2c18a855e
Reviewed-on: https://chromium-review.googlesource.com/937992
Commit-Ready: Po-Hsien Wang <pwang@chromium.org>
Tested-by: Po-Hsien Wang <pwang@chromium.org>
Reviewed-by: Ilja H. Friedel <ihf@chromium.org>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
6 files changed