perf tools: Rename 'struct perf_mmap' to 'struct mmap'

Rename 'struct perf_evlist' to 'struct evlist', so we don't have a name
clash when we add 'struct perf_mmap' to libperf.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lore.kernel.org/lkml/20190913132355.21634-4-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/tests/sw-clock.c

@@ -42,7 +42,7 @@ static int __test__sw_clock_freq(enum perf_sw_ids clock_id)
 	};
 	struct perf_cpu_map *cpus;
 	struct perf_thread_map *threads;
-	struct perf_mmap *md;
+	struct mmap *md;
 
 	attr.sample_freq = 500;