Adding Support for fixing corrupted EMMC

[AlbertoHugonin]

Hello I have a Nintendo Switch v2 with a corrupted emmc resulting in a purple screen, I tried using an rp2040 and this software to run hekate but it's giving an error: ==*= BCT copy failed - write failure I know that i can read the Raw data of the EMMC but i will not be able anyway to fix the corruption so I was wondering if i can use this firmware or a variant to dump the keys i need to read the emmc directly from the console without hekate I think that this feature could bring a lot of nintendo switch back to life