[llvm] [Offload] Implement 'Vendor Name' device info for CUDA (PR #147334)

[Callum Fare via llvm-commits]

https://github.com/callumfare created https://github.com/llvm/llvm-project/pull/147334

After #146345 the device info implementation requires a value for every query, rather than silently returning an empty string. This broke the test for `OL_DEVICE_INFO_VENDOR` on CUDA.

Add a value to the CUDA plugin. We can quite safely hard code this one.

>From 6bb785f94655b364b2cc943b3c43ba50bad5140f Mon Sep 17 00:00:00 2001
From: Callum Fare <callum at codeplay.com>
Date: Wed, 2 Jul 2025 10:39:40 +0100
Subject: [PATCH] [Offload] Implement 'Vendor Name' device info for CUDA

---
 offload/plugins-nextgen/cuda/src/rtl.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/offload/plugins-nextgen/cuda/src/rtl.cpp b/offload/plugins-nextgen/cuda/src/rtl.cpp
index f1164074f9ea9..536a294f07ce3 100644
--- a/offload/plugins-nextgen/cuda/src/rtl.cpp
+++ b/offload/plugins-nextgen/cuda/src/rtl.cpp
@@ -940,6 +940,8 @@ struct CUDADeviceTy : public GenericDeviceTy {
     if (Res == CUDA_SUCCESS)
       Info.add("Device Name", TmpChar);
 
+    Info.add("Vendor Name", "NVIDIA");
+
     Res = cuDeviceTotalMem(&TmpSt, Device);
     if (Res == CUDA_SUCCESS)
       Info.add("Global Memory Size", TmpSt, "bytes");