Update makefiles for hwtypes.h

Test: pass
Change-Id: I8e17eb8fec5d2f04c526476a866c8dd54ccb556c
diff --git a/audio/common/2.0/Android.bp b/audio/common/2.0/Android.bp
index 5330086..ad599ed 100644
--- a/audio/common/2.0/Android.bp
+++ b/audio/common/2.0/Android.bp
@@ -28,6 +28,7 @@
     ],
     out: [
         "android/hardware/audio/common/2.0/types.h",
+        "android/hardware/audio/common/2.0/hwtypes.h",
     ],
 }