perf tool: Rename perf_tool::bpf_event to bpf

No need for that _event suffix, do just like all the other meta event
handlers and suppress that suffix.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Song Liu <songliubraving@fb.com>
Link: https://lkml.kernel.org/n/tip-03spzxtqafbabbbmnm7y4xfx@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index 6f389b3..51e7e6d 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -2492,8 +2492,8 @@ static int __cmd_script(struct perf_script *script)
 		script->tool.finished_round = process_finished_round_event;
 	}
 	if (script->show_bpf_events) {
-		script->tool.ksymbol   = process_bpf_events;
-		script->tool.bpf_event = process_bpf_events;
+		script->tool.ksymbol = process_bpf_events;
+		script->tool.bpf     = process_bpf_events;
 	}
 
 	if (perf_script__setup_per_event_dump(script)) {