tools headers UAPI: sync arch/mips/kernel/syscalls/syscall_n64.tbl with kernel

JIRA: https://issues.redhat.com/browse/RHEL-29796
Upstream Status: RHEL only

description
===========
Upstream, when there is a change in a header file from the specific set
of headers (listed in tools/perf/check-headers.sh), it is accompanied by
a commit that brings the same change into its counterpart located in
tools/include. Usually several changes are squashed together. We cannot
easily follow this strategy, since we not always take all the commits
squashed together.

In order to tidy tools/include up, we need to sync the headers manually.

Signed-off-by: Michael Petlan <mpetlan@redhat.com>

Author: rfmvh

tools/perf/arch/mips/entry/syscalls/syscall_n64.tbl

@@ -366,3 +366,7 @@
 449	n64	futex_waitv			sys_futex_waitv
 450	common	set_mempolicy_home_node		sys_set_mempolicy_home_node
 451	n64	cachestat			sys_cachestat
+452	n64	fchmodat2			sys_fchmodat2
+454	n64	futex_wake			sys_futex_wake
+455	n64	futex_wait			sys_futex_wait
+456	n64	futex_requeue			sys_futex_requeue