drm: xlnx: Fix kerneldoc

Fix a few errors in the kerneldoc. Mostly this addresses missing/renamed
members.
Signed-off-by: Sean Anderson <sean.anderson@linux.dev>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240423171859.3953024-3-sean.anderson@linux.dev

drivers/gpu/drm/xlnx/zynqmp_dpsub.h

@@ -53,6 +53,7 @@ enum zynqmp_dpsub_format {
  * @drm: The DRM/KMS device data
  * @bridge: The DP encoder bridge
  * @disp: The display controller
+ * @layers: Video and graphics layers
  * @dp: The DisplayPort controller
  * @dma_align: DMA alignment constraint (must be a power of 2)
  */

drivers/gpu/drm/xlnx/zynqmp_kms.h

@@ -22,9 +22,9 @@
 struct zynqmp_dpsub;
 
 /**
- * struct zynqmp_dpsub - ZynqMP DisplayPort Subsystem DRM/KMS data
+ * struct zynqmp_dpsub_drm - ZynqMP DisplayPort Subsystem DRM/KMS data
  * @dpsub: Backpointer to the DisplayPort subsystem
- * @drm: The DRM/KMS device
+ * @dev: The DRM/KMS device
  * @planes: The DRM planes
  * @crtc: The DRM CRTC
  * @encoder: The dummy DRM encoder