Fix issues caught by CTS VK.clipping.user_defined.clip_cull_distance.*
Fix issues caught by CTS VK.clipping.user_defined.clip_cull_distance.*

A missing change to fix pre-GFX9 GPUs issues (similar to the commit
https://github.com/GPUOpen-Drivers/llpc/commit/35e4e23b)

GPUOpen-Drivers/llpc,GPUOpen-Drivers/llpc,GPUOpen-Drivers/llpc,GPUOpen-Drivers/llpc,GPUOpen-Drivers/llpc