perf tools: Add missing include <callchain.h> in various places

Its getting it from hist.h and that will go away, as that header doesn't
need callchain.h at all.

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-6ebl3mwwiqocl79yts44qltu@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/ui/gtk/hists.c

@@ -1,6 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0
 #include "../evlist.h"
 #include "../cache.h"
+#include "../callchain.h"
 #include "../evsel.h"
 #include "../sort.h"
 #include "../hist.h"