daemon: Refactor ipcache initialization.
daemon: Refactor ipcache initialization.

Shift this stuff out into its own function to shrink the size of d.init().

Signed-off-by: Joe Stringer <16a9a54ddf4259952e3c118c763138e83693d7fd@covalent.io>

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