SWDEV-336024 - Clear device heap to 0

The heap must be cleared once per device, but ROCclr doesn't
create a queue per device in HIP. Hence, the clear operation will
be performed during the first queue creation.

Change-Id: I52ceb06d67d11cde6d019c5ab510059f426a9bfb

rocclr/device/rocm/rocmemory.cpp

@@ -883,7 +883,8 @@ bool Buffer::create(bool alloc_local) {
         const_cast<Device&>(dev()).updateFreeMemory(size(), false);
       }
     }
-    else {
+    // Hide private allocations from memory tracking
+    else if (owner()->getContext() != dev().context()) {
       const_cast<Device&>(dev()).updateFreeMemory(size(), false);
     }