doc: update configuration tool names

PR #6418 renames the board inspector tool cli.py to board_inspector.py
and the configuration tool app.py to acrn_configurator.py

Update the documentation to use these new names.  Note that the ROScube
GSG is validated with ACRN v2.1 and instructs the user to checkout that
branch where the tool is still called app.py

Signed-off-by: David B. Kinder <david.b.kinder@intel.com>

doc/tutorials/acrn_configuration_tool.rst

@@ -119,7 +119,7 @@ toolset.
       | **Kernel cmdline:** "idle=nomwait intel_idle.max_cstate=0 intel_pstate=disable"
 
    #. Copy the ``board_inspector`` directory into the target file system and then run the
-      ``sudo python3 cli.py $(BOARD)`` command.
+      ``sudo python3 board_inspector.py $(BOARD)`` command.
    #. A ``$(BOARD).xml`` that includes all needed hardware-specific information
       is generated under the current working directory. Here, ``$(BOARD)`` is the
       specified board name.
@@ -128,7 +128,7 @@ toolset.
 
    a. Copy ``$(BOARD).xml`` to the host development machine.
    #. Run the ACRN configuration editor (available at
-      ``misc/config_tools/config_app/app.py``) on the host machine and import
+      ``misc/config_tools/config_app/acrn_configurator.py``) on the host machine and import
       the ``$(BOARD).xml``. Select your working scenario under **Scenario Setting**
       and input the desired scenario settings. The tool will do validation checks
       on the input based on the ``$(BOARD).xml``. The customized settings can be
@@ -422,7 +422,7 @@ Instructions
 
    .. code-block:: bash
 
-      $ python3 app.py
+      $ python3 acrn_configurator.py
 
 #. Open a browser and navigate to the website
    `<http://127.0.0.1:5001/>`_ automatically, or you may need to visit this