Ensure all enum members have brief

[thompson-tomo]

Following on from #2507 a number of enum members don't have briefs, as such, they should be added in an orderly manner so that rules could be added to enforce it at a later point in time.

• [chore] Set enum briefs for AWS #2556
• [chore] Set enum briefs for Azure #2557
• [chore] Set enum briefs for Cassandra #2558
• [chore] Set enum briefs for CPU #2559
• [chore] Set enum briefs for Database #2560
• [chore] Set enum briefs for Disk #2636
• [chore] Set enum briefs for K8s #2637
• [chore] Set enum briefs for Linux #2638
• [chore] Set enum briefs for Network #2639
• [chore] Set enum briefs for Process #2640
• [chore] Set enum briefs for RPC #2650
• [chore] Set enum briefs for System #2651
• [chore] Set enum briefs for Telemetry #2652
• [chore] Set enum briefs for TLS #2654
• ....