Fix regression in M2TS probe introduced in #5503

[robwalch]

This PR will...

• Avoid false positive in M2TS probe where sync byte is not either followed by another sync byte at packet length or is at packet length from the end of the payload
• Reset item related properties in stream-controller onManifestLoading not handled by stopLoad, startLoad, or onManifestLoaded in base controller
• Fix ADTS error handling and tests

Why is this Pull Request needed?

Fixes case where M2TS probe incorrectly exits early

Are there any points in the code the reviewer needs to double check?

Resolves issues:

Closes #5857

Checklist

• changes have been done against master branch, and PR does not conflict
• new unit / functional tests have been added (whenever applicable)
• API or design changes are documented in API.md