attestation: add cros prd ek endorsement ca cert

Add the production EK endorsement CA cert, so
that corresponding EK certs may be verified.

Also update the expiry date on the cros dev ek
endorsement ca cert.

BUG=chrome-os-partner:57944
TEST=none

Change-Id: Icc6bf9d3203ff2220a430f02efb91e9d70533bde
Signed-off-by: nagendra modadugu <ngm@google.com>
Reviewed-on: https://chromium-review.googlesource.com/419770
Commit-Ready: Nagendra Modadugu <ngm@google.com>
Tested-by: Nagendra Modadugu <ngm@google.com>
Reviewed-by: Andrey Pronin <apronin@chromium.org>
(cherry picked from commit 44f5697bf6d150ef7a4341cec149a6f522bc3af5)
1 file changed