Add MCO disruptive suite

Many MCO tests require node disruption, so it was determined that these
would best live as a separate suite.

Create the MCO suite and move existing MCO tests in origin to it. The
next goal is to add On Cluster Layering tests to this as well,
potentially via OTE.

Author: yuqi-zhang

test/extended/machine_config/boot_image_update_aws.go

@@ -11,7 +11,7 @@ import (
 )
 
 // This test is [Serial] because it modifies the cluster/machineconfigurations.operator.openshift.io object in each test.
-var _ = g.Describe("[sig-mco][OCPFeatureGate:ManagedBootImagesAWS][Serial]", func() {
+var _ = g.Describe("[Suite:openshift/machine-config-operator/disruptive][sig-mco][OCPFeatureGate:ManagedBootImagesAWS][Serial]", func() {
 	defer g.GinkgoRecover()
 	var (
 		MCOMachineConfigurationBaseDir = exutil.FixturePath("testdata", "machine_config", "machineconfigurations")

test/extended/machine_config/boot_image_update_gcp.go

@@ -11,7 +11,7 @@ import (
 )
 
 // This test is [Serial] because it modifies the cluster/machineconfigurations.operator.openshift.io object in each test.
-var _ = g.Describe("[sig-mco][OCPFeatureGate:ManagedBootImages][Serial]", func() {
+var _ = g.Describe("[Suite:openshift/machine-config-operator/disruptive][sig-mco][OCPFeatureGate:ManagedBootImages][Serial]", func() {
 	defer g.GinkgoRecover()
 	var (
 		MCOMachineConfigurationBaseDir = exutil.FixturePath("testdata", "machine_config", "machineconfigurations")

test/extended/machine_config/machine_config_node.go

@@ -29,7 +29,7 @@ const (
 	arbiter = "arbiter"
 )
 
-var _ = g.Describe("[sig-mco][OCPFeatureGate:MachineConfigNodes]", func() {
+var _ = g.Describe("[Suite:openshift/machine-config-operator/disruptive][sig-mco][OCPFeatureGate:MachineConfigNodes]", func() {
 	defer g.GinkgoRecover()
 	var (
 		MCOMachineConfigPoolBaseDir    = exutil.FixturePath("testdata", "machine_config", "machineconfigpool")

test/extended/machine_config/pinnedimages.go

@@ -27,7 +27,7 @@ import (
 const emptyImagePin string = "localhost.localdomain/emptyimagepin"
 
 // This test is [Serial] because it modifies the state of the images present on Node in each test.
-var _ = g.Describe("[sig-mco][OCPFeatureGate:PinnedImages][OCPFeatureGate:MachineConfigNodes][Serial]", func() {
+var _ = g.Describe("[Suite:openshift/machine-config-operator/disruptive][sig-mco][OCPFeatureGate:PinnedImages][OCPFeatureGate:MachineConfigNodes][Serial]", func() {
 	defer g.GinkgoRecover()
 	var (
 		MCOPinnedImageBaseDir       = exutil.FixturePath("testdata", "machine_config", "pinnedimage")