Allow callers to configure acceptable TCB status levels

[zeyu-zh]

Proposal

Add an AcceptedTCBStatuses option to verify.Options (and the corresponding accepted_tcb_statuses field in the RootOfTrust protobuf message) that lets callers specify which TCB statuses they consider acceptable beyond the default UpToDate.

Behavior:

• When AcceptedTCBStatuses is nil or empty, the current default behavior is preserved — only UpToDate is accepted.
• When set, both the TDX TCB Info status check and the QE Identity TCB status check will accept any status in the provided list.

Supported values:

• UpToDate
• SWHardeningNeeded
• ConfigurationNeeded
• ConfigurationAndSWHardeningNeeded
• OutOfDate
• OutOfDateConfigurationNeeded

[Xynnn007]

Do you think it's worth making this field an enum than string? It would help to avoid configuring by mistake