[mlir][spirv]: Add Image to Vulkan Storage Class Map

Extend the "storage class" <-> "memory space" map for the Vulkan SPIR-V
environment to include the Image class. 12 is chosen as the next
available value in the MemRef memory space list.

Signed-off-by: Jack Frankland <[email protected]>

Author: FranklandJack

mlir/lib/Conversion/MemRefToSPIRV/MapMemRefStorageClassPass.cpp

@@ -59,7 +59,8 @@ using namespace mlir;
   MAP_FN(spirv::StorageClass::UniformConstant, 8)                              \
   MAP_FN(spirv::StorageClass::Input, 9)                                        \
   MAP_FN(spirv::StorageClass::Output, 10)                                      \
-  MAP_FN(spirv::StorageClass::PhysicalStorageBuffer, 11)
+  MAP_FN(spirv::StorageClass::PhysicalStorageBuffer, 11)                       \
+  MAP_FN(spirv::StorageClass::Image, 12)
 
 std::optional<spirv::StorageClass>
 spirv::mapMemorySpaceToVulkanStorageClass(Attribute memorySpaceAttr) {