tools headers UAPI: sync linux/taskstats.h

tools headers UAPI: sync linux/taskstats.h

Patch series "tools/getdelays: use the static UAPI headers from
tools/include/uapi".

The include directory ../../usr/include is only present if an in-tree
kernel build with CONFIG_HEADERS_INSTALL was done before.  Otherwise the
system UAPI headers are used, which most likely are not the most recent
ones.

To make sure to always have access to up-to-date UAPI headers, use the
static copy in tools/include/uapi.

This patch (of 2):

To give the accounting tools access to the new fields introduced in commit
503efe850c74 ("delayacct: add timestamp of delay max")

Link: https://lkml.kernel.org/r/20260307-accounting-taskstats-h-v1-0-0b75915c6ce5@weissschuh.net
Link: https://lkml.kernel.org/r/20260307-accounting-taskstats-h-v1-1-0b75915c6ce5@weissschuh.net
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Balbir Singh <bsingharora@gmail.com>
Cc: Jiang Kun <jiang.kun2@zte.com.cn>
Cc: Wang Yaxin <wang.yaxin@zte.com.cn>
Cc: xu xin <xu.xin16@zte.com.cn>
Cc: Yang Yang <yang.yang29@zte.com.cn>
Cc: kernel test robot <lkp@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>