db_postgres: updated the path to kamctl sql files

src/modules/db_postgres/Makefile

@@ -39,7 +39,7 @@ ifeq ($(INSTALL_FLAVOUR),kamailio)
 # extra install for kamailio
 
 install-pgsql-scripts: $(bin_prefix)/$(bin_dir)
-		PGSQLON=yes $(MAKE) -C ../../utils/kamctl/ install-modules
+		PGSQLON=yes $(MAKE) -C ../../../utils/kamctl/ install-modules
 
 install-scripts: install-pgsql-scripts