[fixup] typo issue in agent.flowtable_{expire,update} : lowcase T
[fixup] typo issue in agent.flowtable_{expire,update} : lowcase T

Change-Id: Icbc9a13019763c816c41f9879f8296acfc42400b

redhat-cip/skydive,safchain/skydive,safchain/skydive,redhat-cip/skydive,safchain/skydive,skydive-project/skydive,redhat-cip/skydive,lebauce/skydive,lebauce/skydive,lebauce/skydive,safchain/skydive,safchain/skydive,lebauce/skydive,lebauce/skydive,lebauce/skydive,skydive-project/skydive,skydive-project/skydive,safchain/skydive,skydive-project/skydive,skydive-project/skydive,lebauce/skydive,skydive-project/skydive,lebauce/skydive,safchain/skydive,skydive-project/skydive,safchain/skydive