chore(abs): add some device description.

apparmor.d/abstractions/dri

@@ -28,8 +28,11 @@
   @{sys}/devices/@{pci}/uevent r,
   @{sys}/devices/@{pci}/vendor r,
 
+  # Allow access to all cards
   /dev/dri/ r,
   /dev/dri/card@{int} rw,
+
+  # Video Acceleration API
   /dev/dri/renderD128 rw,
   /dev/dri/renderD129 rw,
 

apparmor.d/abstractions/nvidia-strict

@@ -36,8 +36,14 @@
   owner @{PROC}/@{pid}/task/@{tid}/comm r,
 
   /dev/char/195:@{u8} w,  # Nvidia graphics devices
+
+  # Nvidia proprietary modset driver
   /dev/nvidia-modeset rw,
+
+  # Nvidia graphics devices
   /dev/nvidia@{int} rw,
+
+  # Nvidia's control device
   /dev/nvidiactl rw,
 
   deny owner @{HOME}/.nv/.local/share/gvfs-metadata/* r,