CA-75139: Allow locked VIFs to receive broadcast traffic under bridge.
CA-75139: Allow locked VIFs to receive broadcast traffic under bridge.

This removes filtering of traffic being received by VMs, making IPv4
locking under bridge functionally identical to locking under vSwitch.

Signed-off-by: John Else <37b74501daa612e48fea94f9846ed4ddeb6a8f07@citrix.com>

robhoes/squeezed,sharady/xcp-networkd,djs55/xcp-networkd,simonjbeaumont/xcp-rrdd,johnelse/xcp-rrdd,johnelse/xcp-rrdd,koushikcgit/xcp-networkd,sharady/xcp-networkd,djs55/xcp-rrdd,koushikcgit/xcp-rrdd,koushikcgit/xcp-rrdd,koushikcgit/xcp-networkd,koushikcgit/xcp-rrdd,simonjbeaumont/xcp-rrdd,djs55/xcp-rrdd,djs55/squeezed,djs55/xcp-networkd