Add parse failure test when MBEDTLS_RSA_C not set

Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
diff --git a/tests/suites/test_suite_pkcs7.data b/tests/suites/test_suite_pkcs7.data
index 9a3d456..4ffc31e 100644
--- a/tests/suites/test_suite_pkcs7.data
+++ b/tests/suites/test_suite_pkcs7.data
@@ -30,6 +30,10 @@
 depends_on:MBEDTLS_SHA256_C:MBEDTLS_RSA_C
 pkcs7_parse:"data_files/pkcs7_data_with_signature.der":MBEDTLS_ERR_PKCS7_FEATURE_UNAVAILABLE
 
+PKCS7 Signed Data Parse Fail with no RSA #5.3
+depends_on:MBEDTLS_SHA256_C:!MBEDTLS_RSA_C
+pkcs7_parse:"data_files/pkcs7_data_cert_signed_sha256.der":MBEDTLS_ERR_PKCS7_INVALID_CERT
+
 PKCS7 Signed Data Parse Fail with corrupted signer info #6
 depends_on:MBEDTLS_SHA256_C:MBEDTLS_RSA_C
 pkcs7_parse:"data_files/pkcs7_data_signed_badsigner.der":MBEDTLS_ERROR_ADD(MBEDTLS_ERR_PKCS7_INVALID_SIGNER_INFO,MBEDTLS_ERR_ASN1_UNEXPECTED_TAG)