perf trace: Sync uapi/linux/sched.h with the kernel source

perf trace: Sync uapi/linux/sched.h with the kernel source

To pick up changes from:

 9d4e752a24f740b3 ("namespace: allow creating empty mount namespaces")
 c8134b5f13ae959d ("pidfd: add CLONE_PIDFD_AUTOKILL")
 24baca56fafc33d4 ("clone: add CLONE_NNP")
 12ae2c81b21cfaa1 ("clone: add CLONE_AUTOREAP")
 2e7af192697ef2a7 ("sched/deadline: Add reporting of runtime left & ...")

This would be used to beautify scheduler syscall arguments and not to
affect builds of other tools (e.g. objtool).

Please see tools/include/uapi/README.

Reviewed-by: Ian Rogers <irogers@google.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>