libyang UPDATE add prefix for common and config files

To avoid include conflicts.
diff --git a/src/hash_table.c b/src/hash_table.c
index 9655bd6..f951e6a 100644
--- a/src/hash_table.c
+++ b/src/hash_table.c
@@ -21,10 +21,10 @@
 #include <stdlib.h>
 #include <string.h>
 
-#include "common.h"
 #include "compat.h"
 #include "dict.h"
 #include "log.h"
+#include "ly_common.h"
 
 LIBYANG_API_DEF uint32_t
 lyht_hash_multi(uint32_t hash, const char *key_part, size_t len)