message: Fix variable descriptor count test
diff: @@ -257,7 +257,7 @@ void main()
  device, vkh::DescriptorPoolCreateInfo(numDescriptorSets,
  {
  {VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE,
  - numDescriptorSets * numDescriptorsPerSet},
  + numDescriptorSets * numDescriptorsPerSet + 100},
  }),
  NULL, &descpool));
  