filesystem-sanity: Remove factory from BAD_VAR_PACKAGES

We don't allow packages to install into /var because it's not guaranteed
to be stable across reboots.

BUG=b:172200612
TEST=emerge-${BOARD} factory factory-board

Change-Id: Ic2ba710ba637cf424725dda13c47a3b72b225930
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosutils/+/2545339
Tested-by: Cheng Yueh <cyueh@chromium.org>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Commit-Queue: Cheng Yueh <cyueh@chromium.org>
1 file changed