Add hsa_amd_queue_set_priority extension function

Controls dispatch and wavefront scheduling arbitration across quees.

Change-Id: I498f4898b544f79b8fb8514bf7e789ca9da29462

runtime/hsa-runtime/core/inc/host_queue.h

@@ -59,6 +59,9 @@ class HostQueue : public Queue {
   ~HostQueue();
 
   hsa_status_t Inactivate() override { return HSA_STATUS_SUCCESS; }
+  hsa_status_t SetPriority(HSA_QUEUE_PRIORITY priority) override {
+    return HSA_STATUS_ERROR_INVALID_QUEUE;
+  }
 
   uint64_t LoadReadIndexAcquire() override {
     return atomic::Load(&amd_queue_.read_dispatch_id,