Restore patch series "arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"

As part of bringing the master branch back in to next, we need to allow
for all of these changes to exist here.

Reported-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/include/autoboot.h b/include/autoboot.h
index eb20499..c68bd79 100644
--- a/include/autoboot.h
+++ b/include/autoboot.h
@@ -12,6 +12,7 @@
 #define __AUTOBOOT_H
 
 #include <stdbool.h>
+#include <stddef.h>
 
 #ifdef CONFIG_SANDBOX