KVM: s390: add ioctl to inject local interrupts

We have introduced struct kvm_s390_irq a while ago which allows to
inject all kinds of interrupts as defined in the Principles of
Operation.
Add ioctl to inject interrupts with the extended struct kvm_s390_irq

Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>

diff --cc Documentation/virtual/kvm/api.txt
Simple merge

diff --cc arch/s390/kvm/kvm-s390.c
Simple merge

diff --cc include/uapi/linux/kvm.h
Simple merge

diff --cc virt/kvm/kvm_main.c
Simple merge