Adds a func that normalizes the restore config in case inputs don't match accepted or expected values.
Also moves DefaultTestRestoreConfig out of /tester and into /control/testdata to avoid circular dependency issues.
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#### Does this PR need a docs update or release note?
- [x] ⛔ No
#### Type of change
- [x] 🌻 Feature
#### Issue(s)
* #3562
#### Test Plan
- [x] ⚡ Unit test
46eedc0ad1