mac_via: move last_b variable into q800 VIA1 VMStateDescription

This variable is already present in MOS6522Q800VIA1State and can be moved
immediately into the q800 VIA1 VMStateDescription.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20210830102447.10806-3-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
diff --git a/hw/misc/mac_via.c b/hw/misc/mac_via.c
index 46e6505..6fb0b93 100644
--- a/hw/misc/mac_via.c
+++ b/hw/misc/mac_via.c
@@ -1083,7 +1083,6 @@
     .post_load = mac_via_post_load,
     .fields = (VMStateField[]) {
         /* VIAs */
-        VMSTATE_UINT8(mos6522_via1.last_b, MacVIAState),
         VMSTATE_BUFFER(mos6522_via1.PRAM, MacVIAState),
         VMSTATE_TIMER_PTR(mos6522_via1.one_second_timer, MacVIAState),
         VMSTATE_INT64(mos6522_via1.next_second, MacVIAState),
@@ -1159,6 +1158,7 @@
     .fields = (VMStateField[]) {
         VMSTATE_STRUCT(parent_obj, MOS6522Q800VIA1State, 0, vmstate_mos6522,
                        MOS6522State),
+        VMSTATE_UINT8(last_b, MOS6522Q800VIA1State),
         VMSTATE_END_OF_LIST()
     }
 };