drm/i915: Add missing kerneldoc parameters for huc_ucode_xfer

During the recent upheaval to uc, the parameters to huc_ucode_xfer
were changed, but the kerneldoc left behind.

drivers/gpu/drm/i915/intel_huc.c:128: warning: Function parameter or member 'huc_fw' not described in 'huc_ucode_xfer'
drivers/gpu/drm/i915/intel_huc.c:128: warning: Function parameter or member 'vma' not described in 'huc_ucode_xfer'
drivers/gpu/drm/i915/intel_huc.c:128: warning: Excess function parameter 'dev_priv' description in 'huc_ucode_xfer'
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180214104040.4532-1-chris@chris-wilson.co.uk

drivers/gpu/drm/i915/intel_huc.c

@@ -118,7 +118,8 @@ void intel_huc_init_early(struct intel_huc *huc)
 
 /**
  * huc_ucode_xfer() - DMA's the firmware
- * @dev_priv: the drm_i915_private device
+ * @huc_fw: the firmware descriptor
+ * @vma: the firmware image (bound into the GGTT)
  *
  * Transfer the firmware image to RAM for execution by the microcontroller.
  *