[Feature]: Add Power Loss Signaling defination in Nvme.h

[HunterChang030]

Feature Overview

Add Nvme 2.1 spec update, specifically for Power Loss Signaling.

Solution Overview

1. Update field in Identify Controller Data for Power Loss Signaling Information.
2. Define macro for Power Loss Signaling Mode.
3. Define macro for Power Loss Signaling feature identifer.
4. Define NVME_POWER_LOSS_SIGNALING_CONFIG structure for Get/Set Features.

Alternatives Considered

No response

What packages are impacted?

MdePkg

Urgency

Medium

Are you going to implement the feature request?

I will implement the feature

Do you need maintainer feedback?

Maintainer feedback requested

Anything else?

No response

[HunterChang030]

PR : #11255