A "cure" is sadly out of the question.
A "fix" depends on the type of dysplasia and how much money your friend has to spend, I'm afraid.
In some cases the head of the femur can be sculpted to fit the acetabulum or relaced with a false head - as in hip replacements in humans.
In others the cup that the head of the femur sits in (acetabulum) can be shaved of bone to accept the head more comfortably, or, in some practices, even be replaced.

There are a lot of things to think about here....money for the most major surgeries not being the last on the list!! Quality of life for the dog has to be top priority - surgery is not a fix all, recovery time can be a major factor and the pain and stress the dog is put through has to be taken into consideration. Likely recovery and the age of the dog as well as the record of the vet, nursing time and possible complications are all factors.

Next to this, as many people who may have puppies from the same source and the breeder, if possible, need to be told about this. (I have a horrid feeling the breeder either doesn't know enough to be breeding dogs or knows exactly what they are doing and you don't have any way of getting in touch with them.)

A very difficult situation and as the two vets have disagreed so far I would go for a third opinion - and a fourth if need be! Two such different diagnosis would worry me. Let us know what happens.