pref tools: Add missing map.h includes

Lots of places get the map.h file indirectly, and since we're going to
remove it from machine.h, then those need to include it directly, do it
now, before we remove that dep.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-ob8jehdjda8h5jsrv9dqj9tf@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/tests/hists_cumulate.c

@@ -2,6 +2,7 @@
 #include "perf.h"
 #include "util/debug.h"
 #include "util/event.h"
+#include "util/map.h"
 #include "util/symbol.h"
 #include "util/sort.h"
 #include "util/evsel.h"