[mlir] MLIRNVVMTarget link an Absolute Path Library

[MikaOvO]

When build mlir with -DMLIR_ENABLE_NVPTXCOMPILER=ON, there will be an absolute path library in the /Path/to/build/install/lib/cmake/mlir/MLIRTargets.cmake. For example:

set_target_properties(MLIRNVVMTarget PROPERTIES
  INTERFACE_LINK_LIBRARIES "MLIRIR;MLIRExecutionEngineUtils;MLIRSupport;MLIRGPUDialect;MLIRTargetLLVM;MLIRNVVMToLLVMIRTranslation;LLVMSupport;/An/absolute/path/libnvptxcompiler_static.a"
)

If downstream project needs use this target, it will probably can not find this library, then fail to build.

We should make this absolute path become a library that downstream project can modify its path.

[BwL1289]

@MikaOvO this was marked as completed but no commit or pr was associated. Is there a reference to where it was fixed? Thanks!