Enum members can be updated

[jayrulez]

While porting this library to another language: https://github.com/jayrulez/Bulkan/blob/master/Bulkan.Utilities/src/SimpleVulkanSynchronization.bf

I came across 3 enum names that can be updated to the standard KHR variants:

VK_PIPELINE_STAGE_SHADING_RATE_IMAGE_BIT_NV => VK_PIPELINE_STAGE_FRAGMENT_SHADING_RATE_ATTACHMENT_BIT_KHR
VK_ACCESS_SHADING_RATE_IMAGE_READ_BIT_NV =>	VK_ACCESS_FRAGMENT_SHADING_RATE_ATTACHMENT_READ_BIT_KHR
VK_IMAGE_LAYOUT_SHADING_RATE_OPTIMAL_NV => VK_IMAGE_LAYOUT_FRAGMENT_SHADING_RATE_ATTACHMENT_OPTIMAL_KHR