vpp sync to latest validated commit

docker/Dockerfile.upf-vpp.rhel7

@@ -67,7 +67,7 @@ RUN git clone -b stable/2101 https://github.com/fdio/vpp.git && \
     git clone https://github.com/travelping/upg-vpp.git && \
     # For the moment let us fix a given commit
     cd upg-vpp && \
-    git checkout -f 4d32e1721c1e9a1bd7ea861658f502a64f9b4073 && \
+    git checkout -f 1f047425c5c99db44c2e599ad1dfd767d426cce8 && \
     cd .. && \
     mv upg-vpp/upf/ vpp/src/plugins/ && \
     mv upg-vpp/vpp-patches/* scripts/patches/ && \