Fix older machine type compatibility on power with section footers

I forgot to add compatibility for Power when adding section footers.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>

Fixes: 37fb569c0198cba58e3e
Signed-off-by: Juan Quintela <quintela@redhat.com>
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index f174e5a..01f8da8 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -34,6 +34,7 @@
 #include "sysemu/cpus.h"
 #include "sysemu/kvm.h"
 #include "kvm_ppc.h"
+#include "migration/migration.h"
 #include "mmu-hash64.h"
 #include "qom/cpu.h"
 
@@ -1851,6 +1852,7 @@
 
 static void spapr_compat_2_3(Object *obj)
 {
+    savevm_skip_section_footers();
 }
 
 static void spapr_compat_2_2(Object *obj)