wifi: iwlwifi: mvm: send time sync only if needed

If there's no peer configured then there's no point in sending
the command down to the firmware with an invalid peer address.

Fixes: cf85123a ("wifi: iwlwifi: mvm: support enabling and disabling HW timestamping")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230531194630.0fb9f81f1852.Idcc41b67d1fbb421e5ed9bac2177b948b7b4d1c9@changeidSigned-off-by: Johannes Berg <johannes.berg@intel.com>

drivers/net/wireless/intel/iwlwifi/mvm/fw.c

@@ -1725,9 +1725,11 @@ int iwl_mvm_up(struct iwl_mvm *mvm)
 
 	if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
 		iwl_mvm_send_recovery_cmd(mvm, ERROR_RECOVERY_UPDATE_DB);
-		iwl_mvm_time_sync_config(mvm, mvm->time_sync.peer_addr,
-					 IWL_TIME_SYNC_PROTOCOL_TM |
-					 IWL_TIME_SYNC_PROTOCOL_FTM);
+
+		if (mvm->time_sync.active)
+			iwl_mvm_time_sync_config(mvm, mvm->time_sync.peer_addr,
+						 IWL_TIME_SYNC_PROTOCOL_TM |
+						 IWL_TIME_SYNC_PROTOCOL_FTM);
 	}
 
 	if (!mvm->ptp_data.ptp_clock)