doc: tracing: Use SystemView RTT tracing snippet

Refactors the SystemView tracing documentation to use the rtt-tracing
snippet.

Signed-off-by: Maureen Helm <[email protected]>

doc/services/tracing/index.rst

@@ -372,24 +372,20 @@ relies on RTT as a transport. Newer versions of SystemView support other
 transports, for example UART or using snapshot mode (both still not
 supported in Zephyr).
 
-To enable tracing support with `SEGGER SystemView`_ add the configuration option
-:kconfig:option:`CONFIG_SEGGER_SYSTEMVIEW` to your project configuration file and set
-it to *y*. For example, this can be added to the
-:zephyr:code-sample:`synchronization` sample to visualize fast switching between threads.
+To enable tracing support with `SEGGER SystemView`_ add the
+:ref:`snippet-rtt-tracing` to your build command:
+
+    .. zephyr-app-commands::
+        :zephyr-app: samples/synchronization
+        :board: <board>
+        :snippets: rtt-tracing
+        :goals: build
+        :compact:
+
 SystemView can also be used for post-mortem tracing, which can be enabled with
 :kconfig:option:`CONFIG_SEGGER_SYSVIEW_POST_MORTEM_MODE`. In this mode, a debugger can
 be attached after the system has crashed using ``west attach`` after which the
-latest data from the internal RAM buffer can be loaded into SystemView::
-
-    CONFIG_STDOUT_CONSOLE=y
-    # enable to use thread names
-    CONFIG_THREAD_NAME=y
-    CONFIG_SEGGER_SYSTEMVIEW=y
-    CONFIG_USE_SEGGER_RTT=y
-    CONFIG_TRACING=y
-    # enable for post-mortem tracing
-    CONFIG_SEGGER_SYSVIEW_POST_MORTEM_MODE=n
-
+latest data from the internal RAM buffer can be loaded into SystemView.
 
 .. figure:: segger_systemview.png
     :align: center