cilium: update to cilium-runtime image 2019-06-25
cilium: update to cilium-runtime image 2019-06-25

This pulls in upstream bpftool and recent iproute2 with cgroup
recvmsg{4,6} support.

Signed-off-by: Daniel Borkmann <3d0f3b9ddcacec30c4008c5e030e6c13a478cb4f@iogearbox.net>

tklauser/cilium,cilium/cilium,tgraf/cilium,cilium-team/cilium,tgraf/cilium,tgraf/cilium,cilium-team/cilium,michi-covalent/cilium,michi-covalent/cilium,tklauser/cilium,tgraf/cilium,cilium/cilium,tklauser/cilium,tgraf/cilium,tklauser/cilium,michi-covalent/cilium,tklauser/cilium,michi-covalent/cilium,cilium/cilium,tgraf/cilium,cilium/cilium,cilium/cilium,michi-covalent/cilium