drm/amdgpu: enable IH ring 1&2 for Vega20 as well

That doesn't seem to have any negative effects.
Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Chunming Zhou <david1.zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/vega10_ih.c

@@ -469,23 +469,19 @@ static int vega10_ih_sw_init(void *handle)
 	adev->irq.ih.use_doorbell = true;
 	adev->irq.ih.doorbell_index = adev->doorbell_index.ih << 1;
 
-	if (adev->asic_type == CHIP_VEGA10) {
 	r = amdgpu_ih_ring_init(adev, &adev->irq.ih1, PAGE_SIZE, true);
 	if (r)
 		return r;
 
 	adev->irq.ih1.use_doorbell = true;
-		adev->irq.ih1.doorbell_index =
-			(adev->doorbell_index.ih + 1) << 1;
+	adev->irq.ih1.doorbell_index = (adev->doorbell_index.ih + 1) << 1;
 
 	r = amdgpu_ih_ring_init(adev, &adev->irq.ih2, PAGE_SIZE, true);
 	if (r)
 		return r;
 
 	adev->irq.ih2.use_doorbell = true;
-		adev->irq.ih2.doorbell_index =
-			(adev->doorbell_index.ih + 2) << 1;
-	}
+	adev->irq.ih2.doorbell_index = (adev->doorbell_index.ih + 2) << 1;
 
 	r = amdgpu_irq_init(adev);