tools headers UAPI: sync asm-generic/unistd.h 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/include/uapi/asm-generic/unistd.h

@@ -820,8 +820,17 @@ __SYSCALL(__NR_set_mempolicy_home_node, sys_set_mempolicy_home_node)
 #define __NR_cachestat 451
 __SYSCALL(__NR_cachestat, sys_cachestat)
 
+#define __NR_fchmodat2 452
+__SYSCALL(__NR_fchmodat2, sys_fchmodat2)
+#define __NR_futex_wake 454
+__SYSCALL(__NR_futex_wake, sys_futex_wake)
+#define __NR_futex_wait 455
+__SYSCALL(__NR_futex_wait, sys_futex_wait)
+#define __NR_futex_requeue 456
+__SYSCALL(__NR_futex_requeue, sys_futex_requeue)
+
 #undef __NR_syscalls
-#define __NR_syscalls 452
+#define __NR_syscalls 457
 
 /*
  * 32 bit systems traditionally used different