Blocking and default streams' sync:

Add hip::syncStreams(dev) to sync blocking streams on a given device.
hip::syncStreams(void) should only sync streams on the current device.

Change-Id: Ib6b0735215fa0ed12c646ebd029e9763ee3712ce

vdi/hip_stream.cpp

@@ -42,14 +42,20 @@ class StreamCallback {
 
 namespace hip {
 
-void syncStreams() {
+void syncStreams(int devId) {
   amd::ScopedLock lock(streamSetLock);
 
   for (const auto& it : streamSet) {
-    it->finish();
+    if (it->device->deviceId() == devId) {
+      it->finish();
+    }
   }
 }
 
+void syncStreams() {
+  syncStreams(getCurrentDevice()->deviceId());
+}
+
 Stream::Stream(hip::Device* dev, amd::CommandQueue::Priority p, unsigned int f) :
   queue(nullptr), device(dev), priority(p), flags(f) {}