Add recognition of AMI convention of 'Self'

Recognize that in an ambiguous situation, that AMI considers 'Self' to
be 'the' primary element of systems and managers collections.

Change-Id: Ia33fb2b8da357c08b3cf5ce1e5a8550846215a06

pyghmi/redfish/oem/ami/main.py

@@ -0,0 +1,28 @@
+# Copyright 2025 Lenovo Corporation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import pyghmi.redfish.oem.generic as generic
+
+
+def get_handler(sysinfo, sysurl, webclient, cache, cmd, rootinfo={}):
+    if not sysinfo:
+        systems, status = webclient.grab_json_response_with_status('/redfish/v1/Systems')
+        if status == 200:
+            for system in systems.get('Members', []):
+                if system.get('@odata.id', '').endswith('/Self'):
+                    sysurl = system['@odata.id']
+                    sysinfo, status = webclient.grab_json_response_with_status(sysurl)
+                    break
+    return generic.OEMHandler(sysinfo, sysurl, webclient, cache,
+                            gpool=cmd._gpool)

pyghmi/redfish/oem/lookup.py

@@ -15,10 +15,12 @@
 import pyghmi.redfish.oem.dell.main as dell
 import pyghmi.redfish.oem.generic as generic
 import pyghmi.redfish.oem.lenovo.main as lenovo
+import pyghmi.redfish.oem.ami.main as ami
 
 OEMMAP = {
     'Lenovo': lenovo,
     'Dell': dell,
+    'AMI': ami,
 }