tools/mm: use <stdbool.h> in page_owner_sort.c

Use standard <stdbool.h> instead of manually defining bool, true and false.

Link: https://lkml.kernel.org/r/20251015093851.109663-1-ye.liu@linux.dev
Signed-off-by: Ye Liu <liuye@kylinos.cn>
Reviewed-by: Dev Jain <dev.jain@arm.com>
Reviewed-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

tools/mm/page_owner_sort.c

@@ -13,6 +13,7 @@
 
 #include <stdio.h>
 #include <stdlib.h>
+#include <stdbool.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
@@ -23,9 +24,6 @@
 #include <linux/types.h>
 #include <getopt.h>
 
-#define bool int
-#define true 1
-#define false 0
 #define TASK_COMM_LEN 16
 
 struct block_list {