increase permissible message length so that we can handle

CertificateVerify for 4096 bit RSA signatures

ssl/s3_srvr.c

@@ -2127,7 +2127,7 @@ static int ssl3_get_cert_verify(SSL *s)
 		SSL3_ST_SR_CERT_VRFY_A,
 		SSL3_ST_SR_CERT_VRFY_B,
 		-1,
-		512, /* 512? */
+		514, /* 514? */
 		&ok);
 
 	if (!ok) return((int)n);