slippy: Update SPD

BUG=chrome-os-partner:19035
BRANCH=none
TEST=emerge-slippy chromeos-coreboot-slippy

Change-Id: Iae0258ceb0424df0937d2cec7dd885060f5b4e48
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/50082
3 files changed