The last remaining 5.4 target currently chokes because the
symbols haven't been disabled like for 5.10.
Fixes: 97158fe10e60 ("kernel: package ramoops pstore-ram crash log storage")
Reported-by: Hannu Nyman <hannu.nyman@iki.fi>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>