Fix memory leak in test_framing

oy.data memory is alloc by ogg_sync_buffer(), but does not call free()
before main() exit. After fixing it, I test test_framing by valgrind.
And no more memory leak in test_framing and test_bitwise right now.

Signed-off-by: Ralph Giles <giles@thaumas.net>

src/framing.c

@@ -2099,6 +2099,7 @@ int main(void){
       }
     }
   }
+  ogg_sync_clear(&oy);
   ogg_stream_clear(&os_en);
   ogg_stream_clear(&os_de);