perf symbols: Remove include map.h from dso.h

Disentangling the dependency tree, to reduce build time.

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-n2gcrfmh480rm44p7fra13vv@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/util/dso.h

@@ -7,12 +7,14 @@
 #include <linux/rbtree.h>
 #include <sys/types.h>
 #include <stdbool.h>
+#include <stdio.h>
 #include "rwsem.h"
 #include <linux/bitops.h>
-#include "map.h"
 #include "namespaces.h"
 #include "build-id.h"
 
+struct map;
+
 enum dso_binary_type {
 	DSO_BINARY_TYPE__KALLSYMS = 0,
 	DSO_BINARY_TYPE__GUEST_KALLSYMS,