Rename AudioPort and PolicyAudioPort accordingly.

Make the file name consistent as the class name.

Test: make
Bug: 135621476
Change-Id: Icbde26fe1798e344c3746f4678db098688456654
diff --git a/services/audiopolicy/engine/interface/AudioPolicyManagerObserver.h b/services/audiopolicy/engine/interface/AudioPolicyManagerObserver.h
index ae3fc79..349f969 100644
--- a/services/audiopolicy/engine/interface/AudioPolicyManagerObserver.h
+++ b/services/audiopolicy/engine/interface/AudioPolicyManagerObserver.h
@@ -16,7 +16,7 @@
 
 #pragma once
 
-#include <AudioPort.h>
+#include <PolicyAudioPort.h>
 #include <AudioPatch.h>
 #include <IOProfile.h>
 #include <DeviceDescriptor.h>