Commit [1] added backward compatibility for lowlatency upgrades,
since the lowlatency pxe files were removed by [2]. However, one
of the input files used by the script are not being updated and
still contains "_lowlatency" name, making the script to fail in
lowlatency systems. This commit fixes the file name.
[1] https://review.opendev.org/c/starlingx/metal/+/928261
[2] https://review.opendev.org/c/starlingx/metal/+/888358
Test Plan
PASS: AIO-SX - run pxeboot-upgrade-24.09.sh script manually with input file set
as '-i /var/pxeboot/pxelinux.cfg.files/pxe-smallsystem_lowlatency-install-24.09'
PASS: AIO-SX - lock/unlock host
Story: 2010676
Task: 50985
Change-Id: I94c47c0c1ffd9b560f573f85f3402f3534292a3e
Signed-off-by: Heitor Matsui <heitorvieira.matsui@windriver.com>