security/openssl-devel: Update to 1.1 BETA2 (1.1.0-pre5)

• Update to first BETA of OpenSSL 1.1
• Bump SHLIB_VERSION for 1.1 to 9
• Add missing libressl-devel conflict
• Mark jobs-safe
• Add upstream clang fix (Issue 888)
• Fix renamed shared engines (remove 'lib' prefix)
• Remove "overwrite base" check
• Do not install html docs

Reviewed by: feld (mentor), koobs (mentor)
Approved by: feld (mentor)
Differential Revision: D5900