update grub to 2.14

This brings these extra changes:

* eaa3b8f0f Bump version to 2.15
* d38d6a1a9 Release 2.14
* 35bfd6c47 build: Add grub-core/tests/crypto_cipher_mode_vectors.h file to EXTRA_DIST
* ac042f3f5 configure: Print a more helpful error if autoconf-archive is not installed
* e37d02158 kern/ieee1275/openfw: Add a check for invalid partition number
* f94eae0f8 grub-mkimage: Do not generate empty SBAT metadata
* 1aa0dd0c0 configure: Defer check for -mcmodel=large until PIC/PIE checks are done
* ff1edd975 util/grub-mkimagexx: Stop generating unaligned appended signatures
* 51ebc6f67 tests: Add functional tests for ecb/cbc helpers
* caaf50b9a osdep/aros/hostdisk: Fix use-after-free bug during MsgPort deletion
* 18f08826f kern/efi/sb: Enable loading GRUB_FILE_TYPE_CRYPTODISK_ENCRYPTION_KEY and GRUB_FILE_TYPE_CRYPTODISK_DETACHED_HEADER

NOTE: This patch was reversed:

* ac042f3f5 configure: Print a more helpful error if autoconf-archive is not installed

Because it quite unhelpfully broke the build.

Signed-off-by: Leah Rowe <leah@libreboot.org>

config/grub/nvme/patches/0002-say-the-name-libreboot-in-the-grub-menu.patch

@@ -1,14 +1,14 @@
-From d029792781fe280b8dac1bed457ef78b2af84ee2 Mon Sep 17 00:00:00 2001
+From 71623385f90580b2138110cf00ee66b7a05abcf6 Mon Sep 17 00:00:00 2001
 From: Leah Rowe <leah@libreboot.org>
 Date: Sat, 19 Nov 2022 16:30:24 +0000
-Subject: [PATCH 2/9] say the name libreboot, in the grub menu
+Subject: [PATCH 02/10] say the name libreboot, in the grub menu
 
 ---
  grub-core/normal/main.c | 2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)
 
 diff --git a/grub-core/normal/main.c b/grub-core/normal/main.c
-index de9a3f961..1fabb9c86 100644
+index de9a3f961..bed502cde 100644
 --- a/grub-core/normal/main.c
 +++ b/grub-core/normal/main.c
 @@ -215,7 +215,7 @@ grub_normal_init_page (struct grub_term_output *term,