drivers: wifi: Add Kconfig option for passive scan

Add kconfig option for forced passive scan, It will use for
only scan only mode.

Signed-off-by: Kapil Bhatt <kapil.bhatt@nordicsemi.no>

drivers/wifi/nrfwifi/Kconfig.nrfwifi

@@ -814,4 +814,11 @@ config NRF_WIFI_PS_INT_PS
 	  whether to stay in PS (for lower amount of buffered data) or exit PS (for higher
 	  amount of buffered data).
 endchoice
+
+config NRF70_PASSIVE_SCAN_ONLY
+	bool "Forced Passive scan"
+	depends on NRF70_SCAN_ONLY
+	help
+	  Enable this configuration to force passive scan on all channels.
+	  This will override application specified scan type.
 endif # WIFI_NRF70

drivers/wifi/nrfwifi/src/wifi_mgmt_scan.c

@@ -206,6 +206,10 @@ int nrf_wifi_disp_scan_zep(const struct device *dev, struct wifi_scan_params *pa
 
 	vif_ctx_zep->scan_res_cnt = 0;
 
+#ifdef CONFIG_NRF70_PASSIVE_SCAN_ONLY
+	scan_info->scan_params.passive_scan = 1;
+#endif /* CONFIG_NRF70_PASSIVE_SCAN_ONLY */
+
 	status = nrf_wifi_fmac_scan(rpu_ctx_zep->rpu_ctx, vif_ctx_zep->vif_idx, scan_info);
 
 	if (status != NRF_WIFI_STATUS_SUCCESS) {