Add OP-TEE GetSystemTime and revise LVBS platform Instant

[sangho2]

This PR adds OP-TEE GetSystemTime and revises the LVBS platform's Instant. The OP-TEE system time is per-instance monotonic time. Also, it now uses Hyper-V's partition reference-counter tick that is a monotonic, frequency-invariant counter.

[github-actions]

🤖 SemverChecks 🤖 ⚠️ Potential breaking API changes detected ⚠️

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--- failure enum_no_repr_variant_discriminant_changed: enum variant had its discriminant change value ---

Description:
The enum's variant had its discriminant value change. This breaks downstream code that used its value via a numeric cast like `as isize`.
        ref: https://doc.rust-lang.org/reference/items/enumerations.html#assigning-discriminant-values
       impl: https://github.com/obi1kenobi/cargo-semver-checks/tree/v0.48.0/src/lints/enum_no_repr_variant_discriminant_changed.ron

Failed in:
  variant SyscallRequest::CrypStateAlloc 9 -> 10 in /home/runner/work/litebox/litebox/litebox_common_optee/src/lib.rs:95
  variant SyscallRequest::CrypStateFree 10 -> 11 in /home/runner/work/litebox/litebox/litebox_common_optee/src/lib.rs:102
  variant SyscallRequest::CipherInit 11 -> 12 in /home/runner/work/litebox/litebox/litebox_common_optee/src/lib.rs:105
  variant SyscallRequest::CipherUpdate 12 -> 13 in /home/runner/work/litebox/litebox/litebox_common_optee/src/lib.rs:110
  variant SyscallRequest::CipherFinal 13 -> 14 in /home/runner/work/litebox/litebox/litebox_common_optee/src/lib.rs:117
  variant SyscallRequest::CrypObjGetInfo 14 -> 15 in /home/runner/work/litebox/litebox/litebox_common_optee/src/lib.rs:124
  variant SyscallRequest::CrypObjAlloc 15 -> 16 in /home/runner/work/litebox/litebox/litebox_common_optee/src/lib.rs:128
  variant SyscallRequest::CrypObjClose 16 -> 17 in /home/runner/work/litebox/litebox/litebox_common_optee/src/lib.rs:133
  variant SyscallRequest::CrypObjReset 17 -> 18 in /home/runner/work/litebox/litebox/litebox_common_optee/src/lib.rs:136
  variant SyscallRequest::CrypObjPopulate 18 -> 19 in /home/runner/work/litebox/litebox/litebox_common_optee/src/lib.rs:139
  variant SyscallRequest::CrypObjCopy 19 -> 20 in /home/runner/work/litebox/litebox/litebox_common_optee/src/lib.rs:144
  variant SyscallRequest::CrypRandomNumberGenerate 20 -> 21 in /home/runner/work/litebox/litebox/litebox_common_optee/src/lib.rs:148

--- failure inherent_method_missing: pub method removed or renamed ---

Description:
A publicly-visible method or associated fn is no longer available under its prior name. It may have been renamed or removed entirely.
        ref: https://doc.rust-lang.org/cargo/reference/semver.html#item-remove
       impl: https://github.com/obi1kenobi/cargo-semver-checks/tree/v0.48.0/src/lints/inherent_method_missing.ron

Failed in:
  LinuxKernel::init, previously in file /home/runner/work/litebox/litebox/target/semver-checks/git-main/af4fa22f366509f1d01d59788151ff6126b67fac/litebox_platform_lvbs/src/lib.rs:618

[wdcui]

What syscall is for a TA to set its persistent time?

[sangho2]

There is set_ta_time that our OP-TEE shim doesn't support. Basically, this function stores an offset value in persistent storage. TeeTimeCategory::TaPersistent is expected to use this stored value.

[wdcui]

The fix in this line is not specific to this PR?

[sangho2]

True. we can separate this if necessary.

[wdcui]

LGTM. I left some comments for your reference. Thanks.