drouting(k): Makefile updated to link libs

- fixed missing core libs in Makefile
- reported by Denis Pulyato
(cherry picked from commit f572564e862a56470ccb2bc2aa2b23fcbb5dd318)

modules_k/drouting/Makefile

@@ -8,4 +8,9 @@ NAME=drouting.so
 LIBS= 
 DEFS+=-DOPENSER_MOD_INTERFACE
 
+SERLIBPATH=../../lib
+SER_LIBS+=$(SERLIBPATH)/srdb1/srdb1
+SER_LIBS+=$(SERLIBPATH)/kcore/kcore
+SER_LIBS+=$(SERLIBPATH)/kmi/kmi
+
 include ../../Makefile.modules