hooks: add chromeos-base/chromeos-bsp-initramfs-rialtoto the /var exception

BUG=chromium:1059308
TEST=CQ passes

Change-Id: I8fdf13d62621a3aabbd66ee8813ce1cd156c57f8
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosutils/+/2091836
Reviewed-by: Chris McDonald <cjmcdonald@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
Commit-Queue: Mike Frysinger <vapier@chromium.org>
1 file changed