Add interfaces to query aaudio hardware information.

Add interfaces to query aaudio hardware information. The new interfaces
are supposed to replace the system properties. The information includes
aaudio mixer burst count and aaudio hardware burst minimum usec.

Bug: 193275465
Test: atest VtsHalAudioCoreTargetTest
Change-Id: Id3442dae15937baba84f053f2e244bc294f4d718
diff --git a/audio/aidl/vts/ModuleConfig.h b/audio/aidl/vts/ModuleConfig.h
index 8a55754..6a22075 100644
--- a/audio/aidl/vts/ModuleConfig.h
+++ b/audio/aidl/vts/ModuleConfig.h
@@ -139,6 +139,8 @@
         return *config.begin();
     }
 
+    bool isMmapSupported() const;
+
     std::string toString() const;
 
   private: