[dv] Security Feature Coverage

[GregAC]

Document and add coverage points then ensure they're getting hit for:

• [ ] Data independent timing enabled whilst executing all instruction categories - Estimate 2
• [ ] Random instruction generation
  • [ ] enabled whilst executing all instruction categories - Estimate 2
  • [ ] Random instruction generated, for all possible kinds of random instruction - Estimate 2
  • [ ] Cross of different generator configurations - Estimate 2
• [ ] Various faults seen - Estimate 2
  • [ ] Register File ECC fault seen
  • [ ] Register File write enable glitch fault seen
  • [ ] Lockstep glitch fault seen
  • [ ] Icache ECC Fault seen

Estimate 10