cdp: fix disabled parts for openssl version newer than 1.1.0

[herlesupreeth]

Pre-Submission Checklist

• Commit message has the format required by CONTRIBUTING guide
• Commits are split per component (core, individual modules, libs, utils, ...)
• Each component has a single commit (if not, squash them into one commit)
• No commits to README files for modules (changes must be done to docbook files
  in doc/ subfolder, the README file is autogenerated)

Type Of Change

• Small bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds new functionality)
• Breaking change (fix or feature that would change existing functionality)

Checklist:

• PR should be backported to stable branches
• Tested changes locally
• Related to issue #XXXX (replace XXXX with an open issue number)

Description

This PR fixes the disabled parts of the TLS code in cdp module which resulted in getting an error (undefined symbol init_ssl_methods) whenever cdp module was loaded and following openssl version was used.

openssl version
OpenSSL 1.1.1f  31 Mar 2020

[miconda]

Thanks!