i2c-vr: add RAA22X Gen3.5 support

Extend ISL69269 to support Renesas Gen3.5 VR devices which share
similar programming interfaces but use slightly different registers

Related PRs -
EM schema(Merged):
https://gerrit.openbmc.org/c/openbmc/entity-manager/+/84149
Configuration patch(Merged):
https://gerrit.openbmc.org/c/openbmc/entity-manager/+/84150
PDI Hardware change(Merged):
https://gerrit.openbmc.org/c/openbmc/phosphor-dbus-interfaces/+/83529

Testd on Yv5:
```
$ target=$(curl -k ${creds} --silent -X GET https://${bmc}/redfish/v1/UpdateService/FirmwareInventory/ | jq -r '.Members[] | select(.["@odata.id"] | contains("CXL_VR_PVDD")) | .["@odata.id"]')

$ curl -k ${creds} -X GET https://${bmc}${target}
{
  "@odata.id": "/redfish/v1/UpdateService/FirmwareInventory/Yosemite5_CXL_VR_PVDD_CORE_6124",
  "@odata.type": "#SoftwareInventory.v1_1_0.SoftwareInventory",
  "Description": "Unknown image",
  "Id": "Yosemite5_CXL_VR_PVDD_CORE_6124",
  "Name": "Software Inventory",
  "Status": {
    "Health": "OK",
    "HealthRollup": "OK",
    "State": "Enabled"
  },
  "Updateable": true,
  "Version": "4F879069"
}

$ curl -k ${creds}   -H "Content-Type:multipart/form-data"   -X POST   -F UpdateParameters="{\"Targets\":[\"${target}\"],\"@Redfish.OperationApplyTime\":\"OnReset\"};type=application/json"   -F "UpdateFile=@${fwpath};type=application/octet-stream" https://${bmc}/redfish/v1/UpdateService/update-multipart
{
  "@odata.id": "/redfish/v1/TaskService/Tasks/0",
  "@odata.type": "#Task.v1_4_3.Task",
  "HidePayload": false,
  "Id": "0",
  "Messages": [
    {
      "@odata.type": "#Message.v1_1_1.Message",
      "Message": "The task with Id '0' has started.",
      "MessageArgs": [
        "0"
      ],
      "MessageId": "TaskEvent.1.0.TaskStarted",
      "MessageSeverity": "OK",
      "Resolution": "None."
    }
  ],
  "Name": "Task 0",
  "Payload": {
    "HttpHeaders": [],
    "HttpOperation": "POST",
    "TargetUri": "/redfish/v1/UpdateService/update-multipart"
  },
  "PercentComplete": 0,
  "StartTime": "2025-09-15T05:50:48+00:00",
  "TaskMonitor": "/redfish/v1/TaskService/TaskMonitors/0",
  "TaskState": "Running",
  "TaskStatus": "OK"
}

$ curl -k $creds https://$bmc/redfish/v1/TaskService/Tasks/0
{
  "@odata.id": "/redfish/v1/TaskService/Tasks/0",
  "@odata.type": "#Task.v1_4_3.Task",
  "EndTime": "2025-09-15T05:50:49+00:00",
  "HidePayload": false,
  "Id": "0",
  "Messages": [
    {
      "@odata.type": "#Message.v1_1_1.Message",
      "Message": "The task with Id '0' has started.",
      "MessageArgs": [
        "0"
      ],
      "MessageId": "TaskEvent.1.0.TaskStarted",
      "MessageSeverity": "OK",
      "Resolution": "None."
    },
    {
      "@odata.type": "#Message.v1_1_1.Message",
      "Message": "The task with Id '0' has changed to progress 50 percent complete.",
      "MessageArgs": [
        "0",
        "50"
      ],
      "MessageId": "TaskEvent.1.0.TaskProgressChanged",
      "MessageSeverity": "OK",
      "Resolution": "None."
    },
    {
      "@odata.type": "#Message.v1_1_1.Message",
      "Message": "The task with Id '0' has changed to progress 80 percent complete.",
      "MessageArgs": [
        "0",
        "80"
      ],
      "MessageId": "TaskEvent.1.0.TaskProgressChanged",
      "MessageSeverity": "OK",
      "Resolution": "None."
    },
    {
      "@odata.type": "#Message.v1_1_1.Message",
      "Message": "The task with Id '0' has changed to progress 100 percent complete.",
      "MessageArgs": [
        "0",
        "100"
      ],
      "MessageId": "TaskEvent.1.0.TaskProgressChanged",
      "MessageSeverity": "OK",
      "Resolution": "None."
    },
    {
      "@odata.type": "#Message.v1_1_1.Message",
      "Message": "The task with Id '0' has completed.",
      "MessageArgs": [
        "0"
      ],
      "MessageId": "TaskEvent.1.0.TaskCompletedOK",
      "MessageSeverity": "OK",
      "Resolution": "None."
    }
  ],
  "Name": "Task 0",
  "Payload": {
    "HttpHeaders": [],
    "HttpOperation": "POST",
    "JsonBody": "null",
    "TargetUri": "/redfish/v1/UpdateService/update-multipart"
  },
  "PercentComplete": 100,
  "StartTime": "2025-09-15T05:50:48+00:00",
  "TaskMonitor": "/redfish/v1/TaskService/TaskMonitors/0",
  "TaskState": "Completed",
  "TaskStatus": "OK"

```

Change-Id: If99f5571d2d200416247edea2f745c41383af1c4
Signed-off-by: Leo Yang <Leo-Yang@quantatw.com>
diff --git a/i2c-vr/vr.cpp b/i2c-vr/vr.cpp
index c4befe1..fe41df9 100644
--- a/i2c-vr/vr.cpp
+++ b/i2c-vr/vr.cpp
@@ -30,6 +30,9 @@
         case VRType::RAA22XGen2:
             return std::make_unique<ISL69269>(ctx, bus, address,
                                               ISL69269::Gen::Gen2);
+        case VRType::RAA22XGen3p5:
+            return std::make_unique<ISL69269>(ctx, bus, address,
+                                              ISL69269::Gen::Gen3p5);
         default:
             return nullptr;
     }
@@ -43,7 +46,8 @@
         {"MP2X6XXFirmware", VRType::MP2X6XX},
         {"MP297XFirmware", VRType::MP297X},
         {"MP5998Firmware", VRType::MP5998},
-        {"RAA22XGen2Firmware", VRType::RAA22XGen2}};
+        {"RAA22XGen2Firmware", VRType::RAA22XGen2},
+        {"RAA22XGen3p5Firmware", VRType::RAA22XGen3p5}};
 
     if (VRTypeToString.contains(vrStr))
     {