Helm: ceph-csi-operator pod logs errors for missing drivers that are disabled in ceph-csi-drivers

# Describe the bug #

Helm: ceph-csi-operator pod logs errors for missing drivers that are disabled in ceph-csi-drivers

# Environment details #

- Image/version of ceph-csi-operator : 1.0.4
- Image/version of Ceph-CSI driver : 1.0.4
- Kubernetes cluster version : 1.36
- Ceph cluster version : N/A

# Steps to reproduce #

Disable drivers in the ceph-csi-drivers values.yaml:
```
drivers:
rbd:
enabled: true
cephfs:
enabled: true
nfs:
enabled: false
nvmeof:
enabled: false
```

# Actual results #

ceph-csi-operator pod generates numerous error messages for the drivers that are disabled.

# Expected behavior #

ceph-csi-operator pod should not generate error message since the drivers were disabled.

# Logs #

```
2026-08-31T01:32:46Z ERROR Reconciler error {"controller": "driver", "controllerGroup": "csi.ceph.io", "controllerKind": "Driver", "Driver": {"name":"nvmeof.csi.ceph.com","namespace":"ceph-csi-operator-system"}, "namespace": "ceph-csi-operator-system", "name": "nvmeof.csi.ceph.com", "reconcileID": "70d9ab29-e1db-4f50-828a-34f9c635e88a", "error": "Driver.csi.ceph.io \"nvmeof.csi.ceph.com\" not found"}
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller[...]).reconcileHandler
/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.23.3/pkg/internal/controller/controller.go:495
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller[...]).processNextWorkItem
/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.23.3/pkg/internal/controller/controller.go:438
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller[...]).Start.func1.1
/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.23.3/pkg/internal/controller/controller.go:313
2026-08-31T01:32:56Z ERROR CSI Driver reconciliation failed {"controller": "driver", "controllerGroup": "csi.ceph.io", "controllerKind": "Driver", "Driver": {"name":"nfs.csi.ceph.com","namespace":"ceph-csi-operator-system"}, "namespace": "ceph-csi-operator-system", "name": "nfs.csi.ceph.com", "reconcileID": "50492981-5d4e-41e1-a3b7-75e02feb83ec", "error": "Driver.csi.ceph.io \"nfs.csi.ceph.com\" not found"}
github.com/ceph/ceph-csi-operator/internal/controller.(*DriverReconciler).Reconcile
/workspace/internal/controller/driver_controller.go:229
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller[...]).Reconcile
/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.23.3/pkg/internal/controller/controller.go:222
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller[...]).reconcileHandler
/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.23.3/pkg/internal/controller/controller.go:479
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller[...]).processNextWorkItem
/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.23.3/pkg/internal/controller/controller.go:438
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller[...]).Start.func1.1
/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.23.3/pkg/internal/controller/controller.go:313
```

Reproduce the issue with the ceph-csi-drivers values.yaml configuration that disables nfs and nvmeof. Start in internal/controller/driver_controller.go around line 229 and trace how disabled drivers reach reconciliation. Done means the operator no longer logs missing-driver reconciliation errors for disabled drivers while enabled drivers continue to reconcile normally.

Written by the indexing model from the issue text.