perf lock contention: Update total/bad stats for hidden entries

When -E option is used, it only prints the given number of entries but
the event stat at the end should have the numbers for entire entries.

Likewise, -S option will hide entries that don't have the named
function in the callstack.  Also update event stat for them.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Hao Luo <haoluo@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Juri Lelli <juri.lelli@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <song@kernel.org>
Cc: bpf@vger.kernel.org
Link: https://lore.kernel.org/r/20230406210611.1622492-2-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/util/lock-contention.h

@@ -141,6 +141,7 @@ struct lock_contention {
 	int stack_skip;
 	int aggr_mode;
 	int owner;
+	int nr_filtered;
 	bool save_callstack;
 };