SWDEV-314307 - hipStreamWaitEvent to wait on remote IPC events

Change-Id: Id97524ae9bc86d38376af2b0240f10d0dd5cc584

hipamd/src/hip_stream.cpp

@@ -430,6 +430,7 @@ void WaitThenDecrementSignal(hipStream_t stream, hipError_t status, void* user_d
   int offset = data->previous_read_index % IPC_SIGNALS_PER_EVENT;
   while (data->shmem->read_index < data->previous_read_index + IPC_SIGNALS_PER_EVENT &&
          data->shmem->signal[offset] != 0) {
+    amd::Os::sleep(1);
   }
   delete data;
 }