libperf: Add perf_cpu_map__get()/perf_cpu_map__put()

Moving the following functions:

  cpu_map__get()
  cpu_map__put()

to libperf with following names:

  perf_cpu_map__get()
  perf_cpu_map__put()

Committer notes:

Added fixes for arm/arm64

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexey Budankov <alexey.budankov@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20190721112506.12306-31-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index 4929a50..d355f95 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -626,7 +626,7 @@ static bool pmu_is_uncore(const char *name)
 
 	snprintf(path, PATH_MAX, CPUS_TEMPLATE_UNCORE, sysfs, name);
 	cpus = __pmu_cpumask(path);
-	cpu_map__put(cpus);
+	perf_cpu_map__put(cpus);
 
 	return !!cpus;
 }