ole32: Add missed initialization of virtual function table.

dlls/ole32/storage32.c

@@ -4854,6 +4854,7 @@ static StorageInternalImpl* StorageInternalImpl_Construct(
      * Initialize the virtual function table.
      */
     newStorage->base.lpVtbl = &Storage32InternalImpl_Vtbl;
+    newStorage->base.pssVtbl = &IPropertySetStorage_Vtbl;
     newStorage->base.baseVtbl = &StorageInternalImpl_BaseVtbl;
     newStorage->base.openFlags = (openFlags & ~STGM_CREATE);