Merge tag 'efi-2022-01-rc4-4' of https://source.denx.de/u-boot/custodians/u-boot-efi

Pull request for efi-2022-01-rc4-4

UEFI:

* allow for more than 16 KiB UEFI variable size when using StMM

Others:

* make watchdog sysreset compatible with separate poweroff driver
* avoid OpenSSL deprecation warnings

tools/kwbimage.c

@@ -8,6 +8,8 @@
  * <thomas.petazzoni@free-electrons.com>
  */
 
+#define OPENSSL_API_COMPAT 0x10101000L
+
 #include "imagetool.h"
 #include <limits.h>
 #include <image.h>