ggml-cuda : restore prop.integrated on HIP builds (llama/24233)

PR #16308 set info.devices[id].integrated = false unconditionally for all
CUDA/HIP devices as a workaround for corrupted output on Jetson Orin
(#15034). On HIP/ROCm the device's real hipDeviceProp_t.integrated flag is
needed: with the cached field forced to false, supports_buft() refuses
CUDA host buffers on AMD APU/UMA parts, while get_type() already reads
prop.integrated (#23007) — an inconsistency that breaks integrated-GPU
host-buffer use on ROCm.

Guard the workaround so it only applies to non-HIP (CUDA) builds and
restore prop.integrated for HIP, keeping the Jetson workaround intact for
CUDA.

Fixes #23977

Signed-off-by: liminfei-amd <91481003+liminfei-amd@users.noreply.github.com>

ggml/src/ggml-cuda/ggml-cuda.cu

@@ -248,7 +248,11 @@ static ggml_cuda_device_info ggml_cuda_init() {
 
         info.default_tensor_split[id] = total_vram;
         total_vram += prop.totalGlobalMem;
+#if defined(GGML_USE_HIP)
+        info.devices[id].integrated = prop.integrated;
+#else
         info.devices[id].integrated = false; // Temporarily disabled due to issues with corrupted output (e.g. #15034)
+#endif
         info.devices[id].nsm        = prop.multiProcessorCount;
         info.devices[id].smpb       = prop.sharedMemPerBlock;
         info.devices[id].warp_size  = prop.warpSize;