layers: Fix vkCreateDescriptorPool max allocation sizes for each type
layers: Fix vkCreateDescriptorPool max allocation sizes for each type

VkDescriptorPoolSize array can contain more than one of same VkDescriptorType

KhronosGroup/Vulkan-Tools,KhronosGroup/Vulkan-Tools,KhronosGroup/Vulkan-Tools,KhronosGroup/Vulkan-Tools