qcacmn: Add error handling in the Spectral control path

Add an attribute which describes the error code
in the response to set config, start scan and stop
scan.

CRs-Fixed: 2500481
Change-Id: I491cd6e061d2d08ceb4d9af2a7de5223e229c280

spectral/core/spectral_common.c

@@ -429,7 +429,8 @@ spectral_control_cmn(struct wlan_objmgr_pdev *pdev,
 		break;
 
 	case SPECTRAL_STOP_SCAN:
-		sc->sptrlc_stop_spectral_scan(pdev, smode);
+		err = &sscan_req->action_req.sscan_err_code;
+		sc->sptrlc_stop_spectral_scan(pdev, smode, err);
 		break;
 
 	case SPECTRAL_GET_CAPABILITY_INFO: