Changes based on CR.

src/lib/y2network/s390_device_activators/qeth.rb

@@ -49,6 +49,9 @@ def configure_attributes
         extra_attributes.concat(attributes.split(" ")) if attributes
         # Only set if enable
         extra_attributes << ipa_takeover_attribute if ipa_takeover
+        # By default the activation command uses layer2 autodetection but as
+        # this option is not exposed in the activation dialog we have to add it
+        # always (bsc#1183639)
         extra_attributes << layer2_attribute
         extra_attributes << port_attribute if port_number.to_s != "0"
         extra_attributes