wifi: iwlwifi: mvm: make some HW flags conditional

With newer MLD firmware API we no longer need beacon timing
information from the host, so disable TIMING_BEACON_ONLY.

If MLO is enabled (currently only for testing), then we must
not have DEAUTH_NEED_MGD_TX_PREP because mac80211 doesn't
support it yet, we'll have to fix that later.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230329100039.28ec631487bf.I6eb27c3d4c0289a5ec3682f573aae3424f45619f@changeid


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