Enable clang-tidy in libaaudio.

Enabling clang-tidy could help find programming errors at compile time.

Bug: 186572209
Test: make, atest AAudioTests
Change-Id: If48282d10701df87b80a99e2a3d2199437189d70
diff --git a/media/libaaudio/src/client/AudioStreamInternal.h b/media/libaaudio/src/client/AudioStreamInternal.h
index fbe4c13..eab1382 100644
--- a/media/libaaudio/src/client/AudioStreamInternal.h
+++ b/media/libaaudio/src/client/AudioStreamInternal.h
@@ -116,7 +116,7 @@
 
     virtual void prepareBuffersForStart() {}
 
-    virtual void advanceClientToMatchServerPosition(int32_t serverMargin = 0) = 0;
+    virtual void advanceClientToMatchServerPosition(int32_t serverMargin) = 0;
 
     virtual void onFlushFromServer() {}