Change an X.509 bad-case test case to accommodate ASN.1 bug fix

"mbedtls_asn1_get_int: allow leading zeros properly" broke an X.509
test case which now returns a different error code. Tweak the test
data to exercise what the test intended to test.

Author: gilles-peskine-arm

tests/suites/test_suite_x509parse.data

@@ -949,7 +949,7 @@ X509 Certificate ASN1 (TBSCertificate, valid version tag, no length)
 x509parse_crt:"30053003a00102":"":MBEDTLS_ERR_X509_INVALID_VERSION + MBEDTLS_ERR_ASN1_OUT_OF_DATA
 
 X509 Certificate ASN1 (TBSCertificate, valid version tag, invalid length)
-x509parse_crt:"30163014a012021000000000000000000000000000000000":"":MBEDTLS_ERR_X509_INVALID_VERSION + MBEDTLS_ERR_ASN1_INVALID_LENGTH
+x509parse_crt:"30163014a012021000000000000000010000000000000000":"":MBEDTLS_ERR_X509_INVALID_VERSION + MBEDTLS_ERR_ASN1_INVALID_LENGTH
 
 X509 Certificate ASN1 (TBSCertificate, valid version tag, no serial)
 x509parse_crt:"30073005a003020104":"":MBEDTLS_ERR_X509_INVALID_SERIAL + MBEDTLS_ERR_ASN1_OUT_OF_DATA