sysvar: fix wrong variables names

[TomShawn]

What is changed, added or deleted? (Required)

sysvar: fix wrong variables names

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[TomShawn]

/status LGT1

[TomShawn]

/merge

[ti-chi-bot]

This pull request has been accepted and is ready to merge.

Commit hash: b0fdab8

[ti-chi-bot]

In response to a cherrypick label: new pull request created: #10784.

[ti-chi-bot]

In response to a cherrypick label: new pull request created: #10785.