init: use minijail to lock things down a bit

BUG=None
TEST=time is still set, and log output still shows up

Change-Id: Ib66422a2f313afab0e251d54f5c345692d456672
Reviewed-on: https://chromium-review.googlesource.com/1075578
Commit-Ready: Mike Frysinger <vapier@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
Reviewed-by: Jorge Lucangeli Obes <jorgelo@chromium.org>
1 file changed