rma_reset: print authcode even after key mismatch
rma_reset: print authcode even after key mismatch

The point of rma_reset is to test cr50 authcode stuff. We want to make
sure that cr50 doesn't accept test key authcodes when it is using prod
keys. To test this we need to know the authcode that would be generated
with test keys. When there is a unsupported keyid print the authcode so
we can use that authcode to verify prod key cr50 wont accept test key
authcodes.

BUG=none
BRANCH=none
TEST=run rma_reset with a prod key challenge and make sure rma_reset
still prints the authcode.

Change-Id: Id1b0025ff7ab165d26be2b4e1503df7dee1d5ec7
Signed-off-by: Mary Ruthven <81380f3403fed74252e92df3ed012a1819ec6296@google.com>
Reviewed-on: https://chromium-review.googlesource.com/1091972
Commit-Ready: Mary Ruthven <81380f3403fed74252e92df3ed012a1819ec6296@chromium.org>
Tested-by: Mary Ruthven <81380f3403fed74252e92df3ed012a1819ec6296@chromium.org>
Reviewed-by: Vadim Bendebury <5515d6d2d0829cbe0dd0dcf2094aaded06d58514@chromium.org>

coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec