fix(iatverifier): fix pem2cose and redo CCA tokens

Instruct the pem2cose script to automatically strip off the private part
from the input key. Recompute the example CCA tokens accordingly.

Change-Id: I337d94977603bd8512427f3e5bda952c4f72c350
Signed-off-by: Thomas Fossati <thomas.fossati@linaro.org>
5 files changed