Skip the SRP tests in 80-test_ssl_old.t if no TLS versions is enabled

Reviewed-by: Rich Salz <rsalz@openssl.org>

test/recipes/80-test_ssl_old.t

@@ -564,7 +564,7 @@ sub testssl {
 
       SKIP: {
 	  skip "skipping SRP tests", 4
-	      if $no_srp;
+	      if $no_srp || alldisabled(grep !/^ssl3/, available_protocols("tls"));
 
 	  ok(run(test([@ssltest, "-tls1", "-cipher", "SRP", "-srpuser", "test", "-srppass", "abc123"])),
 	     'test tls1 with SRP');