Add 9.2 to release mappings

As part of the process for doing an ironic release, we need to
add the new release to the release mappings as documented in
https://docs.openstack.org/ironic/latest/contributor/releasing.html.
This is needed for rolling upgrades to work.

This adds ironic 9.2 to the release mappings.

Change-Id: Id1ace223c91c2e63529c16450f7c0a92eaca521b

etc/ironic/ironic.conf.sample

@@ -368,7 +368,7 @@
 # (default), leave it unset and the latest versions of RPC
 # communication and database objects will be used. (string
 # value)
-# Allowed values: pike, 9.1, 9.0, 8.0
+# Allowed values: pike, 9.2, 9.1, 9.0, 8.0
 #pin_release_version = <None>
 
 # Path to the rootwrap configuration file to use for running
@@ -442,6 +442,10 @@
 # if log_config_append is set. (string value)
 #syslog_log_facility = LOG_USER
 
+# Use JSON formatting for logging. This option is ignored if
+# log_config_append is set. (boolean value)
+#use_json = false
+
 # Log output to standard error. This option is ignored if
 # log_config_append is set. (boolean value)
 #use_stderr = false

ironic/common/release_mappings.py

@@ -90,6 +90,18 @@ RELEASE_MAPPING = {
             'VolumeTarget': ['1.0'],
         }
     },
+    '9.2': {
+        'rpc': '1.41',
+        'objects': {
+            'Node': ['1.21'],
+            'Conductor': ['1.2'],
+            'Chassis': ['1.3'],
+            'Port': ['1.7'],
+            'Portgroup': ['1.3'],
+            'VolumeConnector': ['1.0'],
+            'VolumeTarget': ['1.0'],
+        }
+    },
     'master': {
         'rpc': '1.41',
         'objects': {