uipcps: fix use-after-free bug found by ASAN on uipcp->name
uipcps: fix use-after-free bug found by ASAN on uipcp->name

This is a race condition between the uipcps server updating
uipcp->name and Neighbr::flow_alloc() accessing uipcp->name to
print logs.

vmaffione/rlite,autrimpo/rlite,autrimpo/rlite,autrimpo/rlite,vmaffione/rlite,vmaffione/rlite,autrimpo/rlite,vmaffione/rlite