libyang UPDATE add prefix for common and config files

To avoid include conflicts.
diff --git a/src/printer_yin.c b/src/printer_yin.c
index f047bee..a16db1f 100644
--- a/src/printer_yin.c
+++ b/src/printer_yin.c
@@ -19,9 +19,9 @@
 #include <stdio.h>
 #include <stdlib.h>
 
-#include "common.h"
 #include "compat.h"
 #include "log.h"
+#include "ly_common.h"
 #include "out.h"
 #include "out_internal.h"
 #include "printer_internal.h"