poppy: add highlight param to VbExDisplayText()

BUG=chrome-os-partner:61275
BRANCH=None
TEST=None
CQ-DEPEND=CL:442747,CL:442690

Change-Id: I0730b64a1f8bf1f4aeca1be5ee87724d61818b23
Signed-off-by: Shelley Chen <shchen@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/442689
Reviewed-by: Randall Spangler <rspangler@chromium.org>
2 files changed