UPSTREAM: KVM: arm/arm64: enable KVM_CAP_IOEVENTFD

As the infrastructure for eventfd has now been merged, report the
ioeventfd capability as being supported.

BUG=chromium:846515
TEST=build/boot on hana with USE=kvm_host

Change-Id: Ib4380303aacd992c237194debe9a4d5085deb4dd
Signed-off-by: Nikolay Nikolaev <n.nikolaev@virtualopensystems.com>
[maz: grouped the case entry with the others, fixed commit log]
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
(cherry picked from commit d44758c0dfc5993a4b9952935a7eae4c91ebb6b4)
Signed-off-by: Sonny Rao <sonnyrao@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1088088
1 file changed