chore(VMware): Modify section of instance-id in the customization con…

…fig (#5356)

For the traditional guest os customization, there is no instance-id provided in the customization
configuration. While since the next vSphere release, instance-id will be provided and included
in the traditional guest os customization configuration for the first time, the format is
"MISC|INSTANCE-ID".
This change is correcting the config parser and related test.

cloudinit/sources/helpers/vmware/imc/config.py

@@ -28,7 +28,7 @@ class Config:
     DEFAULT_RUN_POST_SCRIPT = "MISC|DEFAULT-RUN-POST-CUST-SCRIPT"
     CLOUDINIT_META_DATA = "CLOUDINIT|METADATA"
     CLOUDINIT_USER_DATA = "CLOUDINIT|USERDATA"
-    CLOUDINIT_INSTANCE_ID = "CLOUDINIT|INSTANCE-ID"
+    CLOUDINIT_INSTANCE_ID = "MISC|INSTANCE-ID"
 
     def __init__(self, configFile):
         self._configFile = configFile

tests/data/vmware/cust-dhcp-2nic-instance-id.cfg

@@ -33,5 +33,5 @@ SUFFIX|1 = eng.vmware.com
 TIMEZONE = Africa/Abidjan
 UTC = yes
 
-[CLOUDINIT]
-INSTANCE-ID = guest-os-customization-uuid
+[MISC]
+INSTANCE-ID = 50078779-0bc7-1a57-7c52-1179f03f5650