Can't enable secure boot setup mode

[benjarobin]

@Alec_Miller

OK, I figured it out. If you do the erase all secure boot settings, it erases the DBX options. At least for lanzaboote, this breaks things. Instead I had to go in and manually delete all the PK, KEK, and DB options but leave the DBX options there

Thank you so much, I was going crazy… I documented everything here: Secureboot setup mode - #25 by ROBIN_Benjamin