Suggested by lav@. See https://bugzilla.altlinux.org/39067.

To write rootfs images to flash.

lang=ru_RU not needed added into EFI_BOOTARGS, when use grub-efi.
grub-efi use by default.

mki-copy-grubaa64boot more not needed. In addition, it did not
support the config in boot/grub instead of EFI/BOOT.
Needed mkimage >= 0.2.38-alt1

Suggested-by: https://www.opennet.ru/openforum/vsluhforumID3/123240.html#60

- Add kernel modules for support Raspberry Pi 4 (mainline kernel)
- grub: Markup configuration files for translation (thanks Ivan Razzhivin)
- grub: Use META_VOL_ID for @distro@ instead RELNAME if available
  (ALT bug 39611, 39612)
- tar2fs: Enable secure-boot support for x86_64, add riscv64 support
- Add initrd features for rootfs: kbd rdshell rootfs
- desktop+mate: list is fixed,  as removed metapackage mate-default
- grub: use single boot/grub/grub.cfg in ISO
- Add support grub-pc for bootloading ISO (experimentall)
- Removed kernel modules that haven't been built for a long time

It was removed since chromium-87.0.4280.66-alt1.

Current un-def kernel (5.10.x) should be std-def at the time
of SL-9.1 release.

It was removed since chromium-87.0.4280.66-alt1.

Seems it was removed from repository.
Another lang subpackages provided by firefox-esr now.

Suggested by lav@. See https://bugzilla.altlinux.org/39067.

Suggested by lav@: wine-vanilla is not supoorted really, use wine
instead.

Thanks underwit@
See-also: ALT bug 39632

Needed for use one grub.cfg config for all grub platforms.

Directory syslinux can exist if using memtest feature.

It is required to set the BOOTLOADER and BOOT_TYPE variables in
grubpcboot.

Thanks for the idea Ivan A. Melnikov.

Needed for bluetooth support for Raspberry Pi.