iwlwifi: mvm: spin off a function to start scan offload

The net-detect feature will require a scan offload to be started in
the same way it is done now for scheduled scan.  Spin a new function
off of the sched_scan_start op code for reuse.  Additionally,
restructure the function a bit for more readability.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index b153ced..14ec678 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -949,6 +949,10 @@
 				       struct cfg80211_sched_scan_request *req);
 int iwl_mvm_sched_scan_start(struct iwl_mvm *mvm,
 			     struct cfg80211_sched_scan_request *req);
+int iwl_mvm_scan_offload_start(struct iwl_mvm *mvm,
+			       struct ieee80211_vif *vif,
+			       struct cfg80211_sched_scan_request *req,
+			       struct ieee80211_scan_ies *ies);
 int iwl_mvm_scan_offload_stop(struct iwl_mvm *mvm, bool notify);
 int iwl_mvm_rx_scan_offload_results(struct iwl_mvm *mvm,
 				    struct iwl_rx_cmd_buffer *rxb,