Support qhypstub in the new code base

[exkc]

qhypstub dont work in lastest release

[TravMurav]

No, qhypstub support is not implemented in the new lk2nd yet. There is a WIP branch (rebase/hl) with old implementation ported but those changes are unsafe for new lk2nd since they will break most platforms except msm8916.

To re-add it properly, qhypstub itself needs to be updated but we didn't have time to fix it yet.

[wonderfulShrineMaidenOfParadise]

An attempt: #449