Move LZ4 magic number definitions to public header file so that it can
be used in the payload. Also rename LEGACY_MAGICNUMBER to
LZ4_LEGACY_MAGICNUMBER for clarity when using from the payload.
BUG=None
TEST=Build Hylia BIOS image and boot to OS/UI.
Change-Id: Ief180105ec3fa7abf1013d0c5408aa96edde681b
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/91152
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>