perf beauty: Move uapi/linux/vhost.h copy out of the directory used to build perf

It is only used to generate string tables, not to build perf, so move it
to the tools/perf/trace/beauty/include/ hierarchy, that is used just for
scraping.

This is a something that should've have happened, as happened with the
linux/socket.h scrapper, do it now as Ian suggested while doing an
audit/refactor session in the headers used by perf.

No other tools/ living code uses it, just <linux/vhost.h> coming from
either 'make install_headers' or from the system /usr/include/
directory.

Suggested-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/lkml/CAP-5=fWZVrpRufO4w-S4EcSi9STXcTAN2ERLwTSN7yrSSA-otQ@mail.gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/check-headers.sh b/tools/perf/check-headers.sh
index 76726a5..95a3a40 100755
--- a/tools/perf/check-headers.sh
+++ b/tools/perf/check-headers.sh
@@ -16,7 +16,6 @@
   "include/uapi/linux/in.h"
   "include/uapi/linux/perf_event.h"
   "include/uapi/linux/seccomp.h"
-  "include/uapi/linux/vhost.h"
   "include/linux/bits.h"
   "include/vdso/bits.h"
   "include/linux/const.h"
@@ -96,6 +95,7 @@
   "include/uapi/linux/sched.h"
   "include/uapi/linux/stat.h"
   "include/uapi/linux/usbdevice_fs.h"
+  "include/uapi/linux/vhost.h"
   "include/uapi/sound/asound.h"
 )