[Edge] Fix bootc kargs config for nvidia drm modeset

Author: imbev

tasks/edge/nvidia-dkms.yaml

@@ -20,7 +20,7 @@
 - name: Enable nvidia-drm modeset
   ansible.builtin.copy:
     content: |
-      nvidia-drm.modeset=1
+      kargs = ["nvidia-drm.modeset=1"]
     dest: /usr/lib/bootc/kargs.d/10-nvidia-drm.toml
 
 - name: Build and install NVIDIA dkms drivers