perf annotate: Move bpf header inclusion to inside HAVE_LIBBPF_SUPPORT

No need to include it otherwise.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/util/annotate.c

@@ -10,10 +10,6 @@
 #include <inttypes.h>
 #include <libgen.h>
 #include <stdlib.h>
-#include <bpf/bpf.h>
-#include <bpf/btf.h>
-#include <bpf/libbpf.h>
-#include <linux/btf.h>
 #include "util.h" // hex_width()
 #include "ui/ui.h"
 #include "sort.h"
@@ -1684,6 +1680,10 @@ static int dso__disassemble_filename(struct dso *dso, char *filename, size_t fil
 #define PACKAGE "perf"
 #include <bfd.h>
 #include <dis-asm.h>
+#include <bpf/bpf.h>
+#include <bpf/btf.h>
+#include <bpf/libbpf.h>
+#include <linux/btf.h>
 
 static int symbol__disassemble_bpf(struct symbol *sym,
 				   struct annotate_args *args)