This patch introduces the `LLVMAddrSpaceAttrInterface` for defining
compatible LLVM address space attributes
To test this interface, this patch also adds:
- Adds NVVMMemorySpaceAttr implementing both LLVMAddrSpaceAttrInterface
and MemorySpaceAttrInterface
- Converts NVVM memory space constants from enum to MLIR enums
- Updates all NVVM memory space references to use new attribute system
- Adds support for NVVM memory spaces in ptr dialect translation
Example:
```mlir
llvm.func @nvvm_ptr_address_space(
!ptr.ptr<#nvvm.memory_space<global>>,
!ptr.ptr<#nvvm.memory_space<shared>>,
!ptr.ptr<#nvvm.memory_space<constant>>,
!ptr.ptr<#nvvm.memory_space<local>>,
!ptr.ptr<#nvvm.memory_space<tensor>>,
!ptr.ptr<#nvvm.memory_space<shared_cluster>>
) -> !ptr.ptr<#nvvm.memory_space<generic>>
```
Translating the above code to LLVM produces:
```llvm
declare ptr @nvvm_ptr_address_space(ptr addrspace(1), ptr addrspace(3), ptr addrspace(4), ptr addrspace(5), ptr addrspace(6), ptr addrspace(7))
```
To convert the memory space enum to the new enum class use:
```bash
grep -r . -e "NVVMMemorySpace::kGenericMemorySpace" -l | xargs sed -i -e "s/NVVMMemorySpace::kGenericMemorySpace/NVVMMemorySpace::Generic/g"
grep -r . -e "NVVMMemorySpace::kGlobalMemorySpace" -l | xargs sed -i -e "s/NVVMMemorySpace::kGlobalMemorySpace/NVVMMemorySpace::Global/g"
grep -r . -e "NVVMMemorySpace::kSharedMemorySpace" -l | xargs sed -i -e "s/NVVMMemorySpace::kSharedMemorySpace/NVVMMemorySpace::Shared/g"
grep -r . -e "NVVMMemorySpace::kConstantMemorySpace" -l | xargs sed -i -e "s/NVVMMemorySpace::kConstantMemorySpace/NVVMMemorySpace::Constant/g"
grep -r . -e "NVVMMemorySpace::kLocalMemorySpace" -l | xargs sed -i -e "s/NVVMMemorySpace::kLocalMemorySpace/NVVMMemorySpace::Local/g"
grep -r . -e "NVVMMemorySpace::kTensorMemorySpace" -l | xargs sed -i -e "s/NVVMMemorySpace::kTensorMemorySpace/NVVMMemorySpace::Tensor/g"
grep -r . -e "NVVMMemorySpace::kSharedClusterMemorySpace" -l | xargs sed -i -e "s/NVVMMemorySpace::kSharedClusterMemorySpace/NVVMMemorySpace::SharedCluster/g"
```
NOTE: A future patch will add support for ROCDL, it wasn't added here to
keep the patch small.
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