perf symbols: Move mem_info and branch_info out of symbol.h

The mem_info struct goes to mem-events.h and branch_info goes to
branch.h, where they belong, this way we can remove several headers from
symbols.h and trim the include dependency tree more.

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-aupw71xnravcsu2xoabfmhpc@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/util/session.c

@@ -12,6 +12,8 @@
 #include <sys/mman.h>
 #include <perf/cpumap.h>
 
+#include "map_symbol.h"
+#include "branch.h"
 #include "debug.h"
 #include "evlist.h"
 #include "evsel.h"