migrate/resin-init-flasher: Add changes for improving Jetson Orin provisioning

[acostach]

This PR adds the possibility of overriding the list of target provisioning devices through config.json

This change is related to improving provisioning of Jetson Orin devices, but applies to other flasher devices as well

Change-type: patch

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Contributor checklist

• [x] Changes have been tested
  • [ ] Covered in automated test suite
  • [ ] Manual test case recorded
• [x] Change-type present on at least one commit
• [x] Signed-off-by is present
• [x] The PR complies with the Open Embedded Commit Patch Message Guidelines

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