metrics: add map_ops_total by default
metrics: add map_ops_total by default

Fixes: 603df325f21b ("pkg/bpf: only account for bpf syscalls if syscall metric is enabled")
Signed-off-by: André Martins <bc9800b9d52a24cce72a73dd528afed53f10e5fc@cilium.io>

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