config.h.Profiling: add Z_AUTODISABLE here, too.

testcases/config.h.Profiling

@@ -268,6 +268,17 @@
 */
 //#define USE_INTERNAL_PULLUPS
 
+/** \def Z_AUTODISABLE
+  Automatically disable Z axis when not in use. This is useful for printers
+  with a self-locking Z axis, e.g. the various Mendel derivates.
+
+  Other printers have a heavy Z axis or a not self-locking spindle. In that
+  case you should not activate this.
+
+  This option has no effect on controllers with a common stepper enable pin.
+*/
+#define Z_AUTODISABLE
+
 /*
 	user defined pins
 	adjust to suit your electronics,