OpenSSL: Fix PKCS#12 parsing of extra certificates with OpenSSL 1.0.1

Commit 8bcf8de827e841a35841034edd6f8281a7a3aeba ('OpenSSL: Fix memory
leak in PKCS12 additional certificate parsing') tried to fix a memory
leak in both the 1.0.2(and newer) and 1.0.1 branches of PKCS12 parsing.
However, the 1.0.1 case was not properly tested and freeing of the
certificate after a successful SSL_CTX_add_extra_chain_cert() call
resulted in use of freed memory when going through the TLS handshake.
Fix this by not freeing the certificate in that specific case.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>

src/crypto/tls_openssl.c

@@ -2538,7 +2538,6 @@ static int tls_parse_pkcs12(struct tls_data *data, SSL *ssl, PKCS12 *p12,
 				res = -1;
 				break;
 			}
-			X509_free(cert);
 		}
 		sk_X509_pop_free(certs, X509_free);
 #endif /* OPENSSL_VERSION_NUMBER >= 0x10002000L */