Disable qos resize tempest test for nova-multi-cell job

It turned out that during the qos resize work we did not implemented
support of cross cell resize with qos ports. Tempest test coverage for
the resize and migrate is landed recently that made the nova-multi-cell
job to fail.

So this patch disables the qos resize and migrate tempest tests for the
nova-multi-cell job to unblock the gate.

Related-Bug: #1907522

[1] I8c573c4a11a76932057d8415d76114a03269b9f3

Change-Id: I95bc22f7d65454cd9e7b54a0e6d9516f2f204978

Author: Balazs Gibizer

api-guide/source/port_with_resource_request.rst

@@ -29,7 +29,8 @@ As of 20.0.0 (Train), nova supports cold migrating and resizing servers with
 neutron ports having resource requests if both the source and destination
 compute services are upgraded to 20.0.0 (Train) and the
 ``[upgrade_levels]/compute`` configuration does not prevent the computes from
-using the latest RPC version.
+using the latest RPC version. However cross cell resize and cross cell migrate
+operations are still not supported with such ports.
 
 As of 21.0.0 (Ussuri), nova supports evacuating, live migrating and unshelving
 servers with neutron ports having resource requests.

devstack/nova-multi-cell-blacklist.txt

@@ -7,3 +7,9 @@
 
 # Skip until bug 1906428 is resolved
 tempest.scenario.test_shelve_instance.TestShelveInstance.test_cold_migrate_unshelved_instance
+
+# Also exlude resize and migrate tests with qos ports as qos is currently
+# not supported in cross cell resize case . See
+# https://bugs.launchpad.net/nova/+bug/1907511 for details
+test_migrate_with_qos_min_bw_allocation
+test_resize_with_qos_min_bw_allocation

releasenotes/notes/cros-scell-resize-not-supported-with-ports-having-resource-request-a8e1029ef5983793.yaml

@@ -0,0 +1,7 @@
+---
+issues:
+  - |
+    When the tempest test coverage was added for resize and cold migrate
+    with neutron ports having QoS minimum bandwidth policy rules we
+    discovered that the cross cell resize code path cannot handle such ports.
+    See bug https://bugs.launchpad.net/nova/+bug/1907522 for details.