developer_guides: firmware: update the components part

The UUID now is ready on topology and driver, update the documentation
part.

Signed-off-by: Keyon Jie <yang.jie@linux.intel.com>

Author: keyonjie

developer_guides/firmware/components/component-overview.rst

@@ -24,10 +24,12 @@ uAPI to create a component of that ``type``. It also provides an entry point
 to the component ops implementation.
 
 UUIDs (Universally Unique Identifiers) provide a more scalable and
-collision-free way of component identification. UUIDs are currently used by
-the tracing subsystem while both the topology and driver still depend on
-``type`` to define topology and create component instances. UUIDs are
-expected to replace the ``type`` in these parts as well.
+collision-free way of component identification. UUIDs are currently used as
+the standard interface by all users of the SOF firmware, including the
+tracing subsystem, the topology .m4 files, and the Linux topology driver.
+Using the ``type`` to define topology and create component is still supported
+today, but the ``type`` could be moved out of the IPC struct in the future,
+so allocating UUID for the new added component driver is strongly recommended.
 
 The UUID entry declared in the FW code contains the identifier value as well
 as the object which is the component name in this case. Both are