I moved the raven_dcmu.bin file to another directory, but unfortunately I am still unable to boot any kernel newer 4.20. For me at least, I get a black screen with a horizontal line near the bottom of orange pixels. I will attach the journalctl output from my last boot into kernel 5.0.5. There was a bug filed in Red Hat bugzilla related to this: https://bugzilla.redhat.com/show_bug.cgi?id=1668647