audioflinger: Replace cpustats/CentralTendencyStatistics with audio_utils/Statistics

Revert CPU_FREQUENCY_STATISTICS macro in Configuration.h.

Test: build with different #define, dumpsys media.audio_flinger
Change-Id: I91680c462b069779d8db3b7a10603fb11a81a135
diff --git a/services/audioflinger/FastMixer.cpp b/services/audioflinger/FastMixer.cpp
index ad35264..a42d6b3 100644
--- a/services/audioflinger/FastMixer.cpp
+++ b/services/audioflinger/FastMixer.cpp
@@ -32,7 +32,7 @@
 #include <utils/Trace.h>
 #include <system/audio.h>
 #ifdef FAST_THREAD_STATISTICS
-#include <cpustats/CentralTendencyStatistics.h>
+#include <audio_utils/Statistics.h>
 #ifdef CPU_FREQUENCY_STATISTICS
 #include <cpustats/ThreadCpuUsage.h>
 #endif