vmstate: fix varrays with uint32_t indexes

VMSTATE_VARRAY_UINT32() is used in hw/ds1225y.c, and we checked
VMS_VARRAY_UINT32 bit of field->flags in vmstate_load_state(),
but we don't check this bit in vmstate_save_state().

Signed-off-by: Amos Kong <akong@redhat.com>
Acked-by: Juan Quintela <quintela@redhat.com>
Acked-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
diff --git a/savevm.c b/savevm.c
index 80be1ff..694eaa4 100644
--- a/savevm.c
+++ b/savevm.c
@@ -1486,6 +1486,8 @@
                 n_elems = field->num;
             } else if (field->flags & VMS_VARRAY_INT32) {
                 n_elems = *(int32_t *)(opaque+field->num_offset);
+            } else if (field->flags & VMS_VARRAY_UINT32) {
+                n_elems = *(uint32_t *)(opaque+field->num_offset);
             } else if (field->flags & VMS_VARRAY_UINT16) {
                 n_elems = *(uint16_t *)(opaque+field->num_offset);
             } else if (field->flags & VMS_VARRAY_UINT8) {