vcl: de-init vcl on destroy

Type: fix

Signed-off-by: Florin Coras <fcoras@cisco.com>
Change-Id: If3372e3edd403240c2c9da746246170549a3e644
diff --git a/src/vcl/vppcom.c b/src/vcl/vppcom.c
index 6b690e5..2c01589 100644
--- a/src/vcl/vppcom.c
+++ b/src/vcl/vppcom.c
@@ -1254,6 +1254,7 @@
   munmap (mspace_least_addr (heap), mi.arena);
 
   vcm = &_vppcom_main;
+  vcm->is_init = 0;
 }
 
 int