Display correct set of buttons while adding a new customization template

multi_record should not be set to true in order to display the
Add/Cancel buttons

https://bugzilla.redhat.com/show_bug.cgi?id=1099808
Merge pull request #326 from AparnaKarve/bz1099808_pxe_cust_template_form_buttons

Display correct set of buttons while adding a new customization template