depend on libiscsi2 (>= 1.11.0)
qemu 2.0.0: has a use after free bug in aio completion resulting in segfaults

details in 0001-aio-Fix-use-after-free-in-cancellation-path.patch
do not use gtk support

We do not want to depend on those libraries for now.
fix another aio bug 0001-aio-fix-qemu_bh_schedule-bh-ctx-race-condition.patch

Signed-off-by: Stefan Priebe <s.priebe@profihost.ag>
update to latest qemu (commit 2a2c4830c0068d70443f3dddc4cc668f0c601b5c)

This fixes virtio-scsi boot problems on windows (seabios update)
refresh all quilt patches
added better vfio support