test: check crypto before requiring tls module

test-tls-session-cache currently fails if built --without-ssl:
internal/util.js:82
    throw new errors.Error('ERR_NO_CRYPTO');
    ^

Error [ERR_NO_CRYPTO]: Node.js is not compiled with OpenSSL crypto
support
    at Object.assertCrypto (internal/util.js:82:11)
    at tls.js:26:14
    at NativeModule.compile (bootstrap_node.js:586:7)
    at Function.NativeModule.require (bootstrap_node.js:531:18)
    at Function.Module._load (module.js:449:25)
    at Module.require (module.js:517:17)
    at require (internal/module.js:11:18)
    at Object.<anonymous>
(/node/test/parallel/test-tls-session-cache.js:26:13)
    at Module._compile (module.js:573:30)
    at Object.Module._extensions..js (module.js:584:10)

The test has a crypto check but it come after the require of the tls
module.

This commit moves the crypto check to come before the require of tls and
allows the test to pass.

PR-URL: #14708
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Sakthipriyan Vairamani <thechargingvolcano@gmail.com>
Reviewed-By: David Cai <davidcai1993@yahoo.com>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

test/parallel/test-tls-session-cache.js

@@ -1,12 +1,12 @@
 'use strict';
 const common = require('../common');
 
-if (!common.opensslCli)
-  common.skip('node compiled without OpenSSL CLI.');
-
 if (!common.hasCrypto)
   common.skip('missing crypto');
 
+if (!common.opensslCli)
+  common.skip('node compiled without OpenSSL CLI.');
+
 const assert = require('assert');
 const tls = require('tls');
 const fs = require('fs');