Add zstd to the EFI module list.

cmurf and javierm noticed[0] that we don't have zstd enabled, and that could
cause issues in some cases for /boot on btrfs subvolumes.  This adds it to our
module list.

[0] https://github.com/rhinstaller/anaconda/pull/2255#discussion_r359123085

Related: rhbz#1418336

Signed-off-by: Peter Jones <pjones@redhat.com>

grub.macros

@@ -394,7 +394,7 @@ GRUB_MODULES="	all_video boot blscfg btrfs			\\\
 		password_pbkdf2 pgp png reboot			\\\
 		regexp search search_fs_uuid search_fs_file	\\\
 		search_label serial sleep syslinuxcfg test tftp	\\\
-		version video xfs"				\
+		version video xfs zstd "			\
 GRUB_MODULES+=%{efi_modules}					\
 %{expand:%%{mkimage %{1} %{2} %{3} %{4}}}			\
 %{nil}

grub2.spec

@@ -9,7 +9,7 @@
 Name:		grub2
 Epoch:		1
 Version:	2.04
-Release:	6%{?dist}
+Release:	7%{?dist}
 Summary:	Bootloader with support for Linux, Multiboot and more
 License:	GPLv3+
 URL:		http://www.gnu.org/software/grub/
@@ -512,6 +512,10 @@ rm -r /boot/grub2.tmp/ || :
 %endif
 
 %changelog
+* Mon Jan 06 2020 Peter Jones <pjones@redhat.com> - 2.04-7
+- Add zstd to the EFI module list.
+  Related: rhbz#1418336
+
 * Thu Dec 05 2019 Javier Martinez Canillas <javierm@redhat.com> - 2.04-6
 - Various grub2 cleanups (pbrobinson)
 - Another fix for blscfg variable expansion support