User should not be allowed to add template settings if the template has "Read Instance settings from OVA" enabled

[kiranchavala]

problem

User should not be allowed to add template setting if the template has "Read Instance settings from OVA" enabled

versions

ACS 4.22

The steps to reproduce the bug

1. Register a template in Cloudstack with "Read Instance settings from OVA"

2 Currently, the exception is only thrown, if the user tires to add a uefi setting

3. A similar exception message should be shown if the user tries to add the following settings

What to do about it?

Do not allow the addition of template settings if the template has "Read Instance settings from OVA" enabled

[DaanHoogland]

not sure how this “used” to work. Can you verify @kiranchavala ?