• Fix HPN for 7.9p1
• DOCS is required for HPN but it's not exclusively a flavor so needs to be in the default list.
• Fix a build-time OpenSSL version comparison [1]

PR: 233157 [1]
Reported by: Robert Schulze <rs@bytecamp.net> [1]
Obtained from: upstream c0a35265907533be10ca151ac797f34ae0d68969 [1]