c2hal: Fix note comments that embeds */

Test: `make c2hal` and examine the result for c2hal/test/test.h

Change-Id: I58f9e8dd8decb2d87427cc2b672fd983a7a70ef2
diff --git a/c2hal/Note.h b/c2hal/Note.h
index 679c773..7870191 100644
--- a/c2hal/Note.h
+++ b/c2hal/Note.h
@@ -46,4 +46,4 @@
 
 }  // namespace android
 
-#endif  // NOTE_DECLARATION_H_
\ No newline at end of file
+#endif  // NOTE_DECLARATION_H_