Define more dependencies between libs

Change-Id: Ia74699bad15c1c583571944458fc8a5c3ded574b
Signed-off-by: Damjan Marion <damarion@cisco.com>
diff --git a/src/vpp.am b/src/vpp.am
index be55c40..425f1e3 100644
--- a/src/vpp.am
+++ b/src/vpp.am
@@ -75,10 +75,8 @@
   libvnet.la \
   libsvm.la \
   libsvmdb.la \
-  -lrt
-
-bin_vpp_LDFLAGS = $(DPDK_LD_FLAGS)
-bin_vpp_LDADD += libvppinfra.la -lm -lpthread -ldl $(DPDK_LD_ADD)
+  libvppinfra.la \
+  -lrt -lm -lpthread -ldl
 
 if ENABLE_TESTS
 noinst_PROGRAMS += bin/test_client