perf map: Move structs and prototypes for map groups to a separate header

And since machine.h only needs what is in there, make it stop including
map.h and instead include this newly introduced map_groups.h instead.

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-dbob25fv5rp2rjpwlnterf38@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/ui/stdio/hist.c

@@ -5,6 +5,7 @@
 #include "../../util/util.h"
 #include "../../util/hist.h"
 #include "../../util/map.h"
+#include "../../util/map_groups.h"
 #include "../../util/sort.h"
 #include "../../util/evsel.h"
 #include "../../util/srcline.h"