This controller is also present in i.MX5X devices but they are not
yet emulated by QEMU.
Reviewed-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NJean-Christophe Dubois <jcd@tribudubois.net>
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>