cpld: Virtualize CpldLatticeManager for XO3/XO5 separation

This change makes `CpldLatticeManager` a virtual base class, allowing
other classes to inherit from it. This refactoring enables a cleaner
separation of XO3 and XO5 implementations while sharing common CPLD
management logic.

Test on harma:
```
1. Check firmware info
curl -k -u root:0penBmc -X GET
https://10.10.15.8/redfish/v1/UpdateService/FirmwareInventory/Harma_MB_CPLD_5688
{
    "@odata.id": "/redfish/v1/UpdateService/FirmwareInventory/Harma_MB_CPLD_5688",
    "@odata.type": "#SoftwareInventory.v1_1_0.SoftwareInventory",
    "Description": "Unknown image",
    "Id": "Harma_MB_CPLD_5688",
    "Name": "Software Inventory",
    "Status": {
    "Health": "OK",
    "HealthRollup": "OK",
    "State": "Enabled"
    },
    "Updateable": true,
    "Version": "00000220"
}
2. Trigger Update
curl -k -u root:0penBmc \
    -H "Content-Type:multipart/form-data" \
    -X POST \
    -F UpdateParameters="{\"Targets\":[\"${targetpath}\"], \
    \"@Redfish.OperationApplyTime\":\"Immediate\"};type=application/json" \
    -F "UpdateFile=@${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": "2025-08-13T07:22:06+00:00",
    "TaskMonitor": "/redfish/v1/TaskService/TaskMonitors/0",
    "TaskState": "Running",
    "TaskStatus": "OK"
}
3. After AC cycle check firmware info again
curl -k -u root:0penBmc -X GET
https://10.10.15.8/redfish/v1/UpdateService/FirmwareInventory/Harma_MB_CPLD_5688
{
    "@odata.id": "/redfish/v1/UpdateService/FirmwareInventory/Harma_MB_CPLD_5688",
    "@odata.type": "#SoftwareInventory.v1_1_0.SoftwareInventory",
    "Description": "Unknown image",
    "Id": "Harma_MB_CPLD_5688",
    "Name": "Software Inventory",
    "Status": {
    "Health": "OK",
    "HealthRollup": "OK",
    "State": "Enabled"
    },
    "Updateable": true,
    "Version": "00000224"
}
```

Change-Id: Ic7265dbeeb9f93d4f466cba75ca38fc86342c689
Signed-off-by: Daniel Hsu <Daniel-Hsu@quantatw.com>
diff --git a/cpld/lattice/lattice_cpld_factory.hpp b/cpld/lattice/lattice_cpld_factory.hpp
new file mode 100644
index 0000000..bec61d8
--- /dev/null
+++ b/cpld/lattice/lattice_cpld_factory.hpp
@@ -0,0 +1,27 @@
+#include "cpld/cpld_interface.hpp"
+#include "cpld/lattice/lattice_base_cpld.hpp"
+
+namespace phosphor::software::cpld
+{
+
+class LatticeCPLDFactory : public CPLDInterface
+{
+  public:
+    LatticeCPLDFactory(sdbusplus::async::context& ctx,
+                       const std::string& chipName, latticeChip chipEnum,
+                       uint16_t bus, uint8_t address) :
+        CPLDInterface(ctx, chipName, bus, address), chipEnum(chipEnum)
+    {}
+
+    sdbusplus::async::task<bool> updateFirmware(
+        bool force, const uint8_t* image, size_t imageSize,
+        std::function<bool(int)> progress) final;
+
+    sdbusplus::async::task<bool> getVersion(std::string& version) final;
+
+  private:
+    std::unique_ptr<LatticeBaseCPLD> getLatticeCPLD();
+    latticeChip chipEnum;
+};
+
+} // namespace phosphor::software::cpld