test: hardware required for changeserviceoffering

[shwstppr]

Description

With #4491, root disks of VMs will be resized while changing service offering.
On simulator this would fail and will need actual hypervisor to test.
Component test test_01_change_service_offering in test_mm_domain_limits.py has been tagged to require hardware to address this.
This will skip run for this test on travis.

Types of changes

• Breaking change (fix or feature that would cause existing functionality to change)
• New feature (non-breaking change which adds functionality)
• Bug fix (non-breaking change which fixes an issue)
• Enhancement (improves an existing feature and functionality)
• Cleanup (Code refactoring and cleanup, that may add test cases)

Feature/Enhancement Scale or Bug Severity

Feature/Enhancement Scale

• Major
• Minor

Bug Severity

• BLOCKER
• Critical
• Major
• Minor
• Trivial

Screenshots (if appropriate):

How Has This Been Tested?

[yadvr]

Looks like you've fixed it as well cc @Pearl1594 @DaanHoogland