qcacmn: Replace void * wmi_hdl with abstract type (2/10)

Replace void * wmi handle with abstract type handles
provided by wmi component.

Change-Id: Id12d6446aed8fd389b8677f08765bb31cabf2fb0
CRs-Fixed: 2475444

target_if/spectral/target_if_spectral.h

@@ -686,11 +686,11 @@ struct vdev_spectral_enable_params;
  */
 struct wmi_spectral_cmd_ops {
 	QDF_STATUS (*wmi_spectral_configure_cmd_send)(
-		void *wmi_hdl,
-		struct vdev_spectral_configure_params *param);
+		    wmi_unified_t wmi_hdl,
+		    struct vdev_spectral_configure_params *param);
 	QDF_STATUS (*wmi_spectral_enable_cmd_send)(
-		void *wmi_hdl,
-		struct vdev_spectral_enable_params *param);
+		    wmi_unified_t wmi_hdl,
+		    struct vdev_spectral_enable_params *param);
 };
 
 /**