SUSE-SU-2022:4302-1 Security update for grub2

This update for grub2 fixes the following issues: Security Fixes: - CVE-2022-2601: Fixed buffer overflow in grubfontconstructglyph bsc1205178. - CVE-2022-3775: Fixed integer underflow in blitcomb bsc1205182. Other: - Bump upstream SBAT generation to 3 - Fix unreadable filesystem with xfs v4...