security/libressl backport OPENSSL_NO_EGD update from OpenBSD

[brnrd]

Summary

security/libressl: Backport change for missing EGD feature

• LibreSSL uses opensslfeatures.h to set defines for removed features
• RAND_egd support was removed before first portable release
• Change adds OPENSSL_NO_EGD define to make porting easier
• Change is part of coming 2.2.0 version

Obtained from: OpenBSD
MFC after: 1 month

Test Plan

Redo one of the ports bugs and test

Poudriere testport output
https://reviews.freebsd.org/paste/edit/63/

$ portlint -AC
WARN: Makefile: for new port, make $FreeBSD$ tag in comment section empty, to make SVN happy.
WARN: Makefile: new ports should not set PORTREVISION.
WARN: Conflict "openssl-*" specified too broad. You should end it with a version number fragment (-[0-9]*).
0 fatal errors and 3 warnings found.

[koobs]

• Add QA results (poudriere and portlint) as attachments (or URL's)
• Add proposed commit log (in expected format) to revision SUMMARY

[brnrd]

Pet portlint, re-roll patches with makepatch

[brnrd]

Don't update timestamps!

[koobs]

Approved. But this one (conveniently) needs maintainer approval, who is also your mentor :D

[brnrd]

Revert to simplified MASTER_SITES

[vsevolod]

Please go ahead with committing this change.

[koobs]

Post-commit note:

MFC: isn't used for ports. Did you mean MFH: ?

If so, was this a security related commit? If not, it doesn't need an MFH:

Also to note for future commits, please include the "Differential Revision: <link>" to your review in the commit message. You can see an example in the commit template:

> Differential Revision:    https://reviews.freebsd.org/D### (*full* phabric URL needed).

[koobs]

Closing. Committed in rP388204