Disable cpu power management by default

We have multiple issue with power management so we disable it again.

Related: https://issues.redhat.com/browse/OSPRH-8806
Related: https://issues.redhat.com/browse/OSPRH-8712

templates/nova.conf

@@ -209,7 +209,10 @@ tx_queue_size=512
 swtpm_enabled=True
 volume_use_multipath=true
 live_migration_uri = qemu+ssh://nova@%s/system?keyfile=/var/lib/nova/.ssh/ssh-privatekey
-cpu_power_management=true
+# We can only re-enable it when the following Jiras are fixed:
+# https://issues.redhat.com/browse/OSPRH-8806
+# https://issues.redhat.com/browse/OSPRH-8712
+cpu_power_management=false
 {{end}}
 
 {{if (index . "cell_db_address")}}

test/functional/novacell_controller_test.go

@@ -325,7 +325,7 @@ var _ = Describe("NovaCell controller", func() {
 			Expect(configData).To(
 				ContainSubstring(
 					"live_migration_uri = qemu+ssh://nova@%s/system?keyfile=/var/lib/nova/.ssh/ssh-privatekey"))
-			Expect(configData).To(ContainSubstring("cpu_power_management=true"))
+			Expect(configData).To(ContainSubstring("cpu_power_management=false"))
 			// The nova compute agent is expected to log to stdout. On edpm nodes this allows podman to
 			// capture the logs and make them available via `podman logs` while also redirecting the logs
 			// to the systemd journal. For openshift compute services, the logs are captured by the openshift