bpf: Cover native routing CIDR check in compile tests
bpf: Cover native routing CIDR check in compile tests

This commit defines the IPV4_SNAT_EXCLUSION_DST_CIDR{,_LEN} macros in
node_config.h such that the related code (guarded by that macro) is
compiled during compile tests (build_all make target).

Signed-off-by: Paul Chaignon <a027184a55211cd23e3f3094f1fdc728df5e0500@cilium.io>

michi-covalent/cilium,michi-covalent/cilium,michi-covalent/cilium,cilium/cilium,cilium/cilium,michi-covalent/cilium,michi-covalent/cilium,cilium/cilium,cilium/cilium,cilium/cilium