Vulkan: moved initialization of image level data to vkBindImageMemory.
Vulkan: moved initialization of image level data to vkBindImageMemory.

This better reflects the actual state of the image level--it has no backing
memory until the vkBindImageMemory call.

This was also necessary to pick up dependencies on vkBindImageMemory.

Qining/gapid,Qining/gapid,pmuetschard/gapid,Qining/gapid,google/agi,google/gapid,pmuetschard/gapid,Qining/gapid,google/agi,google/gapid,Qining/gapid,pmuetschard/gapid,google/gapid,Qining/gapid,pmuetschard/gapid,google/agi,google/agi,Qining/gapid,google/gapid,google/gapid,pmuetschard/gapid,pmuetschard/gapid,pmuetschard/gapid,google/agi,google/gapid,google/agi,Qining/gapid,pmuetschard/gapid,google/gapid,google/agi,google/gapid,google/agi