Fixed QAT device binding and device unbinding when vpp package is removed

Change-Id: I35ad6a42093cad0945df1df09a39c63c4560dce6
Signed-off-by: Radu Nicolau <radu.nicolau@intel.com>
diff --git a/build-root/rpm/vpp.spec b/build-root/rpm/vpp.spec
index 95196e9..7bc18ca 100644
--- a/build-root/rpm/vpp.spec
+++ b/build-root/rpm/vpp.spec
@@ -244,7 +244,7 @@
 for d in $pci_dirs; do
     for f in ${d}/*; do
         [ -e "${f}/config" ] || continue
-        echo 1 > ${f}/remove
+        echo ${f##*/} > ${d}/unbind
         basename `dirname ${f}` | xargs echo -n "Removing driver"; echo " for PCI ID" `basename ${f}`
         removed=y
     done