Fix queue creation for PC Sampling

Fix lazy pointer initialization for dedicated PC Sampling queue.
Previous implementation would always create a queue on GPU agent
creation instead of creating the queue on first use.

Change-Id: Icf300f2b162e59143ba61ba182d9bee6e1308fc1

runtime/hsa-runtime/core/runtime/amd_gpu_agent.cpp

@@ -765,7 +765,7 @@ void GpuAgent::InitDma() {
   // Dedicated compute queue for PC Sampling CP-DMA commands. We need a dedicated queue that runs at
   // highest priority because we do not want the CP-DMA commands to be delayed/blocked due to
   // other dispatches/barriers that could be in the other AQL queues.
-  queues_[QueuePCSampling].reset(queue_lambda(HSA_QUEUE_PRIORITY_MAXIMUM));
+  queues_[QueuePCSampling].reset([queue_lambda, this]() { return queue_lambda(HSA_QUEUE_PRIORITY_MAXIMUM); });
 
   // Decide which engine to use for blits.
   auto blit_lambda = [this](bool use_xgmi, lazy_ptr<core::Queue>& queue, bool isHostToDev) {