wifi: mac80211_hwsim: Multiple BSSID support

Advertise multiple BSSID support for up to 8 interfaces.
Do not send beacons from the non-transmitting interfaces.

Signed-off-by: Aloka Dixit <quic_alokad@quicinc.com>
Link: https://lore.kernel.org/r/20221206005040.3177-4-quic_alokad@quicinc.com


Signed-off-by: Johannes Berg <johannes.berg@intel.com>