wscutil: Fix a return statement

Fixes: 8d58f5b679 ('wscutil: Move DeviceType parsing from p2p & eap-wsc to a function')

src/wscutil.c

@@ -3073,7 +3073,7 @@ bool wsc_device_type_from_setting_str(const char *value,
 	 * DeviceType=1-0050f204-1
 	 */
 	if (wsc_device_type_from_subcategory_str(out, value))
-		true;
+		return true;
 
 	u = strtoull(value, &endp, 0);