libyang UPDATE add prefix for common and config files

To avoid include conflicts.
diff --git a/tests/utests/schema/test_yin.c b/tests/utests/schema/test_yin.c
index a531b64..13b32b3 100644
--- a/tests/utests/schema/test_yin.c
+++ b/tests/utests/schema/test_yin.c
@@ -19,8 +19,8 @@
 #include <stdio.h>
 #include <string.h>
 
-#include "common.h"
 #include "in.h"
+#include "ly_common.h"
 #include "parser_internal.h"
 #include "schema_compile.h"
 #include "tree.h"