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

### 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

Start by tracing the existing validation that rejects adding a UEFI setting when "Read Instance settings from OVA" is enabled, then identify where the other template settings shown in the issue are handled. The change is complete when all template settings are rejected with a similar exception for affected templates, while unaffected templates can still add settings.

Written by the indexing model from the issue text.