Fixed seccfg unlock?

[progzone122]

@shomykohai Maybe we can use seccfg unlock after merge PL, since someone with a similar problem got it to work

bkerler/mtkclient#1356
bkerler/mtkclient#1345

[progzone122]

However, it used BROM, also we don't have write access to the seccfg partition.
This probably won't work

[shomykohai]

I agree, it probably won't work, but we can always try