Updating Apache Karaf to 4.2.2.

Change-Id: I346f21b8da7583c77e7b0612c7f2931aa63a67e0
diff --git a/tools/test/bin/onos-check-bits b/tools/test/bin/onos-check-bits
index ed7bb7c..4954638 100755
--- a/tools/test/bin/onos-check-bits
+++ b/tools/test/bin/onos-check-bits
@@ -32,7 +32,7 @@
   echo "ONOS archive does not contain the proper version file" && exit 1
 fi
 
-tar tzf ${ONOS_TAR} | grep -q apache-karaf-4.2.1
+tar tzf ${ONOS_TAR} | grep -q apache-karaf-4.2.2
 if [ $? -ne 0 ]; then
   echo "ONOS archive does not contain karaf" && exit 1
 fi