qcacmn: Populate and expose 320MHz spectral capabilities

Populate and expose the following 320MHz spectral capabilities.
  - Agile spectral scan support for 320MHz mode.
  - Number of detectors used for spectral scan in 320MHz mode.

Change-Id: Ibea77d4ec8b1d9322ef82d1d48236836ffad24ec
CRs-Fixed: 3053059

spectral/dispatcher/inc/spectral_ioctl.h

@@ -354,7 +354,7 @@ struct spectral_config {
  * @agile_spectral_cap: agile Spectral capability for 20/40/80
  * @agile_spectral_cap_160: agile Spectral capability for 160 MHz
  * @agile_spectral_cap_80p80: agile Spectral capability for 80p80
- * @agile_spectral_cap_320: agile Spectral capability for 320
+ * @agile_spectral_cap_320: agile Spectral capability for 320 MHz
  * @num_detectors_20mhz: number of Spectral detectors in 20 MHz
  * @num_detectors_40mhz: number of Spectral detectors in 40 MHz
  * @num_detectors_80mhz: number of Spectral detectors in 80 MHz

spectral/dispatcher/src/wlan_spectral_utils_api.c

@@ -45,7 +45,9 @@ bool wlan_spectral_is_mode_disabled_pdev(struct wlan_objmgr_pdev *pdev,
 					wlan_pdev_nif_feat_ext_cap_get(
 			pdev, WLAN_PDEV_FEXT_AGILE_SPECTRAL_SCAN_160_DIS) &&
 					wlan_pdev_nif_feat_ext_cap_get(
-			pdev, WLAN_PDEV_FEXT_AGILE_SPECTRAL_SCAN_80P80_DIS);
+			pdev, WLAN_PDEV_FEXT_AGILE_SPECTRAL_SCAN_80P80_DIS) &&
+					wlan_pdev_nif_feat_ext_cap_get(
+			pdev, WLAN_PDEV_FEXT_AGILE_SPECTRAL_SCAN_320_DIS);
 		break;
 
 	default: