Mark BROKEN on FreeBSD 13 and 14

network.c:298:19: error: variable has incomplete type 'struct ifdatareq'

struct ifdatareq ifdr;
                 ^

network.c:298:9: note: forward declaration of 'struct ifdatareq'

struct ifdatareq ifdr;

Reported by: pkg-fallout
MFH: 2021Q1