system_wrappers: rename interface -> include

webrtc/system_wrappers/source/cpu_info.cc

 /*
  *  Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
-#include "webrtc/system_wrappers/interface/cpu_info.h"
+#include "webrtc/system_wrappers/include/cpu_info.h"
 
 #include "webrtc/base/systeminfo.h"
 
 namespace webrtc {
 
 uint32_t CpuInfo::DetectNumberOfCores() {
   return static_cast<uint32_t>(rtc::SystemInfo::GetMaxCpus());
 }
 
 }  // namespace webrtc