perf version: Use regular verbose flag

Remove additional version_verbose flag by using the existing verbose
variable.

Signed-off-by: Ian Rogers <[e-mail]>
Cc: Adrian Hunter <[e-mail]>
Cc: Alexander Shishkin <[e-mail]>
Cc: Athira Rajeev <[e-mail]>
Cc: Chengdong Li <[e-mail]>
Cc: Denis Nikitin <[e-mail]>
Cc: Florian Fischer <[e-mail]>
Cc: Ingo Molnar <[e-mail]>
Cc: James Clark <[e-mail]>
Cc: Jiri Olsa <[e-mail]>
Cc: John Garry <[e-mail]>
Cc: Kan Liang <[e-mail]>
Cc: Leo Yan <[e-mail]>
Cc: Mark Rutland <[e-mail]>
Cc: Martin Liška <[e-mail]>
Cc: Mathieu Poirier <[e-mail]>
Cc: Mike Leach <[e-mail]>
Cc: Namhyung Kim <[e-mail]>
Cc: Peter Zijlstra <[e-mail]>
Cc: Raul Silvera <[e-mail]>
Cc: Ravi Bangoria <[e-mail]>
Cc: Rob Herring <[e-mail]>
Cc: Sean Christopherson <[e-mail]>
Cc: Suzuki Poulouse <[e-mail]>
Cc: Will Deacon <[e-mail]>
Cc: Xing Zhengjun <[e-mail]>
Cc: [e-mail]
Cc: [e-mail]
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Arnaldo Carvalho de Melo <[e-mail]>

tools/perf/builtin-version.c

···
 // SPDX-License-Identifier: GPL-2.0
 #include "builtin.h"
 #include "color.h"
+#include "util/debug.h"
 #include "util/header.h"
 #include <tools/config.h>
 #include <stdbool.h>
 #include <stdio.h>
 #include <string.h>
 #include <subcmd/parse-options.h>
-
-int version_verbose;
 
 struct version {
 	bool	build_options;
···
 
 	printf("perf version %s\n", perf_version_string);
 
-	if (version.build_options || version_verbose == 1)
+	if (version.build_options || verbose > 0)
 		library_status();
 
 	return 0;

tools/perf/perf.c

···
 
 		if (!strcmp(cmd, "-vv")) {
 			(*argv)[0] = "version";
-			version_verbose = 1;
+			verbose = 1;
 			break;
 		}
 

tools/perf/perf.h

···
 	PERF_AFFINITY_MAX
 };
 
-extern int version_verbose;
 #endif