qcacmn: Process get_cu_for_each_subbw driver command

1. Read the new service capability:
WMI_SERVICE_CCA_BUSY_INFO_FOREACH_20 MHz: Via this host knows
whether FW supports reporting of CCA busy info for each 20 MHz
subband of wideband scan channel or not.

WMI_SERVICE_VDEV_PARAM_CHWIDTH_WITH_NOTIFY_SUPPORT: Via this
host knows whether FW supports VDEV param channel width switch
with OMN/OMI notification or not

2. Register osif callback to send scan done indication to upper
layer

3. Add 2 new scan flags pause_home_channel and
report_cca_busy_for_each_20 MHz

Change-Id: I63d561a3c5f8e49a3ca42d956e6b630c63edeaf4
CRs-Fixed: 3460901

target_if/init_deinit/src/init_event_handler.c

@@ -451,6 +451,15 @@ static int init_deinit_service_ready_event_handler(ol_scn_t scn_handle,
 
 	init_deinit_update_vendor_handoff_control_caps(wmi_handle, psoc);
 
+	if (wmi_service_enabled(wmi_handle,
+				wmi_service_cca_busy_info_for_each_20mhz))
+		wlan_psoc_nif_fw_ext2_cap_set(psoc,
+					WLAN_CCA_BUSY_INFO_FOREACH_20MHZ);
+	if (wmi_service_enabled(wmi_handle,
+			wmi_service_vdev_param_chwidth_with_notify_support))
+		wlan_psoc_nif_fw_ext2_cap_set(psoc,
+				WLAN_VDEV_PARAM_CHWIDTH_WITH_NOTIFY_SUPPORT);
+
 	if (wmi_service_enabled(wmi_handle, wmi_service_ext_msg)) {
 		target_if_debug("Wait for EXT message");
 	} else {