The specific type of quantum computer D-Wave has developed can-not solve cryptography problems.
This has nothing to do with Bitcoin.
This.
D-Wave so called "quantum computers" do
not use the quantum entanglement property, thus they can't break public key cryptography.
They call them "quantum" because they use atoms for computation - that's all.
Don't get confused by their marketing team who are obviously taking advantage of the terminology, perhaps to attract naive investors?
If they don't really use any quantum property to compute, then why do call them quantum computing? It's not quantum, even though is is quite of an advance in computing.