migration: Move dump_vmsate_json_to_file() to misc.h

It was not from vmstate.c to start with.
Signed-off-by: NJuan Quintela <quintela@redhat.com>
Reviewed-by: NPhilippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: NPeter Xu <peterx@redhat.com>
Reviewed-by: NLaurent Vivier <lvivier@redhat.com>

include/migration/misc.h

@@ -36,4 +36,8 @@ int64_t self_announce_delay(int round)
     return 50 + (SELF_ANNOUNCE_ROUNDS - round - 1) * 100;
 }
 
+/* migration/savevm.c */
+
+void dump_vmstate_json_to_file(FILE *out_fp);
+
 #endif

include/migration/vmstate.h

@@ -1003,8 +1003,6 @@ void vmstate_register_ram(struct MemoryRegion *memory, DeviceState *dev);
 void vmstate_unregister_ram(struct MemoryRegion *memory, DeviceState *dev);
 void vmstate_register_ram_global(struct MemoryRegion *memory);
 
-void dump_vmstate_json_to_file(FILE *out_fp);
-
 bool vmstate_check_only_migratable(const VMStateDescription *vmsd);
 
 #endif