lib/test_vmalloc.c: fix typo in function name

Fix a typo and change the function name to init_test_configuration.  Both
caller and definition have the same typo, so the current code already
works.

Link: https://lkml.kernel.org/r/20240226191159.39509-2-martin@kaiser.cx
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Reviewed-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

lib/test_vmalloc.c

@@ -501,7 +501,7 @@ static int test_func(void *private)
 }
 
 static int
-init_test_configurtion(void)
+init_test_configuration(void)
 {
 	/*
 	 * A maximum number of workers is defined as hard-coded
@@ -531,7 +531,7 @@ static void do_concurrent_test(void)
 	/*
 	 * Set some basic configurations plus sanity check.
 	 */
-	ret = init_test_configurtion();
+	ret = init_test_configuration();
 	if (ret < 0)
 		return;