Remove sh -c wrappers from operand-asset DaemonSets (Part 2)

[rajathagasthya]

Part of NVIDIA/cloud-native-team#299.

Once the operand images (mig-parted, nvidia-container-toolkit,
k8s-driver-manager, k8s-device-plugin) drop their /bin/sh busybox
symlink, the remaining sh -c wrappers in gpu-operator's operand
asset DaemonSets will break. These need to be converted to direct
binary invocations or to rmglob-style static helpers (modeled on
the rmglob introduced in PR #2434).

Scope (assets/state-*/):

• state-driver/0500_daemonset.yaml — nvidia-driver probe_nvidia_peermem, lsmod | grep nvidia_fs, lsmod | grep gdrdrv, rm -f /run/.../driver-ctr-ready preStop
• state-vfio-manager/0500_daemonset.yaml — vfio-manage bind --all && while true; do sleep …
• state-mig-manager/0600_daemonset.yaml
• state-vgpu-manager/0500_daemonset.yaml
• state-vgpu-device-manager/0600_daemonset.yaml
• state-sandbox-device-plugin/0500_daemonset.yaml
• state-cc-manager/0500_daemonset.yaml
• state-dcgm/0400_dcgm.yml
• state-dcgm-exporter/0800_daemonset.yaml
• state-mps-control-daemon/0400_daemonset.yaml
• state-container-toolkit/0500_daemonset.yaml
• state-device-plugin/0500_daemonset.yaml
• gpu-feature-discovery/0500_daemonset.yaml

Acceptance:

• All listed manifests no longer wrap operand binaries in sh -c
• lsmod | grep <module> checks replaced by Go-based module
  checks or sentinel-file-based readiness
• preStop rm -f calls replaced with rmglob or equivalent
  static binary
• e2e against a real GPU node passes