Couple of cleanups.

Remove queue limitation since we loop through HW queues now.
Add a DevLogError if we fail to create the hsa_queue. A ticket showed a regression there.

Change-Id: I4f58e405f88e75600a762f6d6352838c969cdb5e

rocclr/device/rocm/rocdevice.cpp

@@ -1963,6 +1963,7 @@ hsa_queue_t* Device::acquireQueue(uint32_t queue_size_hint, bool coop_queue) {
                           &queue) != HSA_STATUS_SUCCESS) {
     queue_size >>= 1;
     if (queue_size < 64) {
+      DevLogError("Device::acquireQueue: hsa_queue_create failed!");
       return nullptr;
     }
   }