drm/amdgpu/ih: fix documentation in amdgpu_irq_dispatch

Fix parameters.
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c

@@ -383,7 +383,7 @@ int amdgpu_irq_add_id(struct amdgpu_device *adev,
  * amdgpu_irq_dispatch - dispatch IRQ to IP blocks
  *
  * @adev: amdgpu device pointer
- * @entry: interrupt vector pointer
+ * @ih: interrupt ring instance
  *
  * Dispatches IRQ to IP blocks.
  */