t420-hotp-maximized doesn't build in origin/master

[tlaurion]

snippet from origin/master's commit 693ae77 build https://app.circleci.com/pipelines/github/linuxboot/heads/1334/workflows/557b0634-4ce8-4bca-9731-11d6b80b3c18/jobs/48824

    CBFS       fallback/payload
EOL_t420-hotp-maximized/util/cbfstool/cbfstool EOL_t420-hotp-maximized/coreboot.pre.tmp add-payload -f ../EOL_t420-hotp-maximized/bzImage -n fallback/payload  -c LZMA  -r COREBOOT   -C "quiet loglevel=2" -I "../EOL_t420-hotp-maximized/initrd.cpio.xz" 
E: LZMA: LzmaEnc_Encode failed 9.
W: Compression failed or would make the data bigger - disabled.
E: LZMA: LzmaEnc_Encode failed 9.
W: Compression failed or would make the data bigger - disabled.
E: Could not add ../EOL_t420-hotp-maximized/bzImage [header 44 + content 7786688 bytes (7604 KB)] @0x0; Largest empty slot: 7785792 bytes
E: Failed to add '../EOL_t420-hotp-maximized/bzImage' into ROM image.
E: Failed while operating on 'COREBOOT' region!
E: The image will be left unmodified.
make[1]: *** [Makefile.mk:1276: EOL_t420-hotp-maximized/coreboot.pre] Error 1
make[1]: Leaving directory '/root/heads/build/x86/coreboot-25.09'

x220/t420 will get unmaintained soon unless #1991 or something else #590