wifi: drivers: indicate support for attributes in NL80211_CMD_SET_BSS

wifi: drivers: indicate support for attributes in NL80211_CMD_SET_BSS

The command NL80211_CMD_SET_BSS has a number of individual attributes
and the driver can advertise which of those it will handle when it is
changed by user-space. For drivers providing an empty .change_bss()
the callback has been removed.

Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Link: https://patch.msgid.link/20250817190435.1495094-3-arend.vanspriel@broadcom.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>