build(deps): bump third_party/litedram from `2c60861` to `7dacfaf`

[dependabot[bot]]

Bumps third_party/litedram from 2c60861 to 7dacfaf.

Commits

• 7dacfaf Merge pull request #352 from maribu/litedram/phy/lpddrX/commands.py/fix-inval...
• d6bf987 Merge pull request #354 from hansfbaier/downconvert-cleanup
• d7344c0 frontend/avalon: Remove downconvert specific logic (no longer required with L...
• ed1e569 frontend/adapter/LiteDRAMNativePortDownConverter: Do early ack of user cmd.
• 5e7ba4e frontend/avalon/SINGLE_WRITE: Remove writedata update and port.cmd.last (not ...
• ff9f750 frontend/avalon: Avoid byteenable clear (data) and clear cmd_ready_seen in ST...
• f1f5f63 frontend/avalon: Improve decoupling in START state.
• b0503f1 frotend/avalon: Another simplifiation pass on start condition.
• 9950904 frontend/avalon: Simplify start condition.
• 1752709 frontend/avalon: First review pass to make codestyle more similar to other Li...
• Additional commits viewable in compare view

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

---

Dependabot commands and options

You can trigger Dependabot actions by commenting on this PR:

• @dependabot rebase will rebase this PR
• @dependabot recreate will recreate this PR, overwriting any edits that have been made to it
• @dependabot merge will merge this PR after your CI passes on it
• @dependabot squash and merge will squash and merge this PR after your CI passes on it
• @dependabot cancel merge will cancel a previously requested merge and block automerging
• @dependabot reopen will reopen this PR if it is closed
• @dependabot close will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually
• @dependabot show <dependency name> ignore conditions will show all of the ignore conditions of the specified dependency
• @dependabot ignore this major version will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this minor version will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this dependency will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)