tools headers UAPI: Sync linux/prctl.h with the kernel sources

To pick the changes in:

9a10064f5625d557 ("mm: add a field to store names for private anonymous memory")

That don't result in any changes in tooling:

$ tools/perf/trace/beauty/prctl_option.sh > before
$ cp include/uapi/linux/prctl.h tools/include/uapi/linux/prctl.h
$ tools/perf/trace/beauty/prctl_option.sh > after
$ diff -u before after
$

This actually adds a new prctl arg, but it has to be dealt with
differently, as it is not in sequence with the other arguments.

Just silences this perf tools build warning:

Warning: Kernel ABI header at 'tools/include/uapi/linux/prctl.h' differs from latest version at 'include/uapi/linux/prctl.h'
diff -u tools/include/uapi/linux/prctl.h include/uapi/linux/prctl.h

Cc: Adrian Hunter <[e-mail]>
Cc: Colin Cross <[e-mail]>
Cc: Ian Rogers <[e-mail]>
Cc: Jiri Olsa <[e-mail]>
Cc: Kees Cook <[e-mail]>
Cc: Namhyung Kim <[e-mail]>
Cc: Suren Baghdasaryan <[e-mail]>
Signed-off-by: Arnaldo Carvalho de Melo <[e-mail]>

tools/include/uapi/linux/prctl.h

···
 # define PR_SCHED_CORE_SCOPE_THREAD_GROUP	1
 # define PR_SCHED_CORE_SCOPE_PROCESS_GROUP	2
 
+#define PR_SET_VMA		0x53564d41
+# define PR_SET_VMA_ANON_NAME		0
+
 #endif /* _LINUX_PRCTL_H */