drm/amdgpu/vcn: Remove unneeded semicolon

report by coccicheck:
drivers/gpu/drm/amd/amdgpu/vcn_v2_5.c:1951:2-3: Unneeded semicolon

Fixes: c543dcbe ("drm/amdgpu/vcn: Add VCN ras error query support")
Signed-off-by: Haowen Bai <baihaowen@meizu.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/vcn_v2_5.c

@@ -1948,7 +1948,7 @@ static uint32_t vcn_v2_6_query_poison_by_instance(struct amdgpu_device *adev,
 		break;
 	default:
 		break;
-	};
+	}
 
 	if (poison_stat)
 		dev_info(adev->dev, "Poison detected in VCN%d, sub_block%d\n",