**Is your feature request related to a problem? Please describe.** Related to https://github.com/thesofproject/sof/issues/7703 When SOF is built is one of the Zephyr dictionary logging formats enabled for mtrace backend, the data seen my mtrace-reader.py will be binary and current check-sof-logger.sh test will fail to detect the Zephyr banner and test case will fail. sof-test cases need to be extended to handle SOF FW builds where logging output is binary, use appropriate postprocessing tools to decode the binary stream and correctly detect working/non-working FW logging. **Describe the solution you'd like** **Describe alternatives you've considered** **Additional context** - https://github.com/thesofproject/linux/issues/3867 - https://github.com/thesofproject/sof/issues/7703 - https://github.com/thesofproject/linux/issues/3867 - https://github.com/thesofproject/sof/issues/5521 - https://github.com/thesofproject/sof/issues/5597 - https://github.com/thesofproject/sof/issues/4672 - https://www.youtube.com/watch?v=Q7xkqPGZvLE&list=PLbzoR-pLrL6rQLZttVSF_DwzncObtwyM3&index=67