Add LUID to OrtHardwareDevice metadata if available. (microsoft#25221)

### Description
<!-- Describe your changes. -->
Add the LUID to metadata.


### Motivation and Context
<!-- - Why is this change required? What problem does it solve?
- If it fixes an open issue, please link to the issue here. -->
Requested by partners.

Author: skottmckay

onnxruntime/core/platform/windows/device_discovery.cc

@@ -336,6 +336,7 @@ std::unordered_map<uint64_t, DeviceInfo> GetDeviceInfoD3D12() {
     info.device_id = desc.DeviceId;
     info.description = std::wstring(desc.Description);
 
+    info.metadata[L"LUID"] = std::to_wstring(key);
     info.metadata[L"DxgiAdapterNumber"] = std::to_wstring(i);
     info.metadata[L"DxgiVideoMemory"] = std::to_wstring(desc.DedicatedVideoMemory / (1024 * 1024)) + L" MB";
   }
@@ -436,17 +437,17 @@ std::unordered_map<uint64_t, DeviceInfo> GetDeviceInfoDxcore() {
         continue;
       }
 
-      DeviceInfo& info = device_info[key];
-
       // Get hardware identifying information
       DXCoreHardwareIDParts idParts = {};
       if (!adapter->IsPropertySupported(DXCoreAdapterProperty::HardwareIDParts) ||
           FAILED(adapter->GetProperty(DXCoreAdapterProperty::HardwareIDParts, sizeof(idParts), &idParts))) {
         continue;  // also need valid ids
       }
 
+      DeviceInfo& info = device_info[key];
       info.vendor_id = idParts.vendorID;
       info.device_id = idParts.deviceID;
+      info.metadata[L"LUID"] = std::to_wstring(key);
 
       // Is this a GPU or NPU
       if (adapter->IsAttributeSupported(DXCORE_ADAPTER_ATTRIBUTE_D3D12_GRAPHICS)) {