The SMMUv3 ID registers cover an area 0x30 bytes in size
(12 registers, 4 bytes each). We were incorrectly decoding
only the first 0x20 bytes.
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Reviewed-by: NEric Auger <eric.auger@redhat.com>
Message-id: 20190524124829.2589-1-peter.maydell@linaro.org