radv: implement vkCopyImageToImageEXT()

Because there is no surface<->surface helper in addrlib, this allocates
a temporary buffer on the CPU to do image->buffer->image. It's a naive
implementation which is probably not the best for performance, but it
works at least.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/35974>
1 file changed