virgl/vtest: deprecate protocol version 1
This is a partial revert of 9d81cd ("virgl: Pass resource size and transfer offsets").
The adjustments made in the client code means there's various mismatches when transfering data.
Let's fallback to protocol version 0 and deprecate protocol version 1. We can still use the protocol version 1 slots for a shared memory transfer mechanism later.
Fixes: dEQP-GLES31.functional.copy_image.mixed.viewclass_128_bits_mixed.*_renderbuffer