libyang UPDATE add prefix for common and config files

To avoid include conflicts.
diff --git a/src/tree_schema.c b/src/tree_schema.c
index df89924..488a03f 100644
--- a/src/tree_schema.c
+++ b/src/tree_schema.c
@@ -27,13 +27,13 @@
 #include <sys/stat.h>
 #include <unistd.h>
 
-#include "common.h"
 #include "compat.h"
 #include "context.h"
 #include "dict.h"
 #include "in.h"
 #include "in_internal.h"
 #include "log.h"
+#include "ly_common.h"
 #include "parser_internal.h"
 #include "parser_schema.h"
 #include "path.h"