Implement the maintenance interrupt generation that is part of the GICv2
virtualization extensions.
Signed-off-by: NLuc Michel <luc.michel@greensocs.com>
Reviewed-by: NPeter Maydell <peter.maydell@linaro.org>
Message-id: 20180727095421.386-18-luc.michel@greensocs.com
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>