Reset dirty log on full snapshot path

[RomanKovtyukh]

Changes

• Added the get_dirty_bitmap on the full snapshot path

Reason

• The full snapshot path doesn’t call Vmm:get_dirty_bitmap thus doesn’t call KVM_GET_DIRTY_LOG which doesn’t reset dirty pages.

License Acceptance

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PR Checklist

• [ ] If a specific issue led to this PR, this PR closes the issue.

• [ ] The description of changes is clear and encompassing.

• [ ] Any required documentation changes (code and docs) are included in this PR.

• [ ] API changes follow the Runbook for Firecracker API changes.

• [ ] User-facing changes are mentioned in CHANGELOG.md.

• [ ] All added/changed functionality is tested.

• [ ] New TODOs link to an issue.

• [ ] Commits meet contribution quality standards.

• [ ] This functionality cannot be added in rust-vmm.