utility: Allow chromeos-tpm-recovery to return error.

When some of the space re-creation procedure failed,
chromeos-tpm-recovery should exit with non-zero value and not saying TPM
is successfully recovered.

BRANCH=None
BUG=None
TEST=manually: chromeos-tpm-recovery

Change-Id: Id898c11adacd0ab38de2481cace23ca37deaec9c
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/410467
Reviewed-by: Julius Werner <jwerner@chromium.org>
1 file changed