spapr: prepare for qdevification of irq

Restructure common properties for sPAPR devices so that IRQ definitions
can be added in one place.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Cc: Alexander Graf <agraf@suse.de>
Cc: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
diff --git a/hw/spapr_llan.c b/hw/spapr_llan.c
index 2597748..abe1297 100644
--- a/hw/spapr_llan.c
+++ b/hw/spapr_llan.c
@@ -495,9 +495,7 @@
     .qdev.name = "spapr-vlan",
     .qdev.size = sizeof(VIOsPAPRVLANDevice),
     .qdev.props = (Property[]) {
-        DEFINE_PROP_UINT32("reg", VIOsPAPRDevice, reg, 0x1000),
-        DEFINE_PROP_UINT32("dma-window", VIOsPAPRDevice, rtce_window_size,
-                           0x10000000),
+        DEFINE_SPAPR_PROPERTIES(VIOsPAPRVLANDevice, sdev, 0x1000, 0x10000000),
         DEFINE_NIC_PROPERTIES(VIOsPAPRVLANDevice, nicconf),
         DEFINE_PROP_END_OF_LIST(),
     },