[3.12] Fix typo in perf profiling docs (pythonGH-112112) (python#112117)

Fix typo in perf profiling docs (pythonGH-112112)
(cherry picked from commit 0cfdd6e)

Co-authored-by: Ryuji Tsutsui <[email protected]>

Doc/howto/perf_profiling.rst

@@ -97,7 +97,7 @@ Then we can use ``perf report`` to analyze the data:
                             |          |          |                     |          |          |--2.97%--_PyObject_Malloc
     ...
 
-As you can see, the Python functions are not shown in the output, only ``_Py_Eval_EvalFrameDefault``
+As you can see, the Python functions are not shown in the output, only ``_PyEval_EvalFrameDefault``
 (the function that evaluates the Python bytecode) shows up. Unfortunately that's not very useful because all Python
 functions use the same C function to evaluate bytecode so we cannot know which Python function corresponds to which
 bytecode-evaluating function.