IPython.core.pylabtools: fix configure_inline_support import

The deprecated function IPython.core.pylabtools.configure_inline_support
attempts to import configure_inline_support_orig from the module
matplotlib_inline.backend_inline, but the actual function name is
configure_inline_support. Correct the import.

IPython/core/pylabtools.py

@@ -383,6 +383,6 b' def configure_inline_support(shell, backend):'
         stacklevel=2,
     )
 
-    from matplotlib_inline.backend_inline import configure_inline_support_orig
+    from matplotlib_inline.backend_inline import configure_inline_support as configure_inline_support_orig
 
     configure_inline_support_orig(shell, backend)