VPP-12: only remove vpp-related files from /dev/shm

Change-Id: I1b6983a6d23d3d2635814cdd307efa25cd5c8b7b
Signed-off-by: Dave Barach <dave@barachs.net>
diff --git a/build-root/deb/debian/vpp.service b/build-root/deb/debian/vpp.service
index a284929..4054985 100644
--- a/build-root/deb/debian/vpp.service
+++ b/build-root/deb/debian/vpp.service
@@ -4,10 +4,10 @@
 
 [Service]
 Type=simple
-ExecStartPre=-/bin/rm -f /dev/shm/* 
+ExecStartPre=-/bin/rm -f /dev/shm/db /dev/shm/global_vm /dev/shm/vpe-api 
 ExecStartPre=-/sbin/modprobe igb_uio
 ExecStart=/usr/bin/vpp -c /etc/vpp/startup.conf
-ExecStopPost=/bin/rm -f /dev/shm/*
+ExecStopPost=/bin/rm -f /dev/shm/db /dev/shm/global_vm /dev/shm/vpe-api 
 Restart=always
 
 [Install]