pkg/endpoint: fix new identity assignment for different labels
pkg/endpoint: fix new identity assignment for different labels

Reported-by: da39a3ee5e6b4b0d3255bfef95601890afd80709@mrdima
Signed-off-by: André Martins <bc9800b9d52a24cce72a73dd528afed53f10e5fc@cilium.io>

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