bpf: ipv4: Provide real endpoint ID in debug messages
bpf: ipv4: Provide real endpoint ID in debug messages

The endpoint ID is extended with a flag to mark IPv4 endpoints,
this has been done before reporting the ID to user space for
troubleshooting which caused printing of invalid endpoint IDs.

Signed-off-by: Thomas Graf <5f50a84c1fa3bcff146405017f36aec1a10a9e38@cilium.io>

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