busybox: dd: Enable more options

recipes-core/busybox/busybox/dd-ibsobs.cfg

+# Sun Dec 26 16:55:55 2021
+CONFIG_FEATURE_DD_IBS_OBS=y

recipes-core/busybox/busybox_%.bbappend

@@ -7,6 +7,10 @@ SRC_URI:append:fng = " \
     file://fngsystem-config.cfg \
 "
 
+SRC_URI:append = " \
+    file://dd-ibsobs.cfg \
+"
+
 # udhcpc is running in foreground and delays the startup
 # Make it go into background earlier
 do_prepare_config:append () {