The source project of this merge request has been removed.
pvr: Fix seg fault on empty descriptor set
What does this MR do and why?
Vulkan allows empty descriptor sets to be created. When we setup
the descriptor set addresses table we fill in the address of the
bo for each valid/currently bound desc set. For empty desc sets
there is no bo which was causing a seg fault. Now skip them,
leaving their address set to ~0.