Only report alert status if the PD chip is not being held in reset.
(idea borrowed from Amenia's implementation)
BUG=none
BRANCH=none
TEST=built and booted on reef
Change-Id: Ic637b1ab4e20527c806311a45c149b9ea5f64362
Signed-off-by: David Hendricks <dhendrix@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/360020
Reviewed-by: Martin Roth <martinroth@chromium.org>
d173f84190