bpf: exact word match on bpf_clear_cgroups for hook
bpf: exact word match on bpf_clear_cgroups for hook

Change the ID retrival of bpf_clear_cgroups() to be an exact match on
the hook to avoid getting the wrong ID. Example is bind{4,6} hook versus
post_bind{4,6} given the former is a substring of the latter.

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

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