package/rtl8189fs: correct hash
While fixing up the spaces in the hash file of rtl8189fs in commit
5b88a0a57a9a590427d03719777c46f7ea5a6c43, Arnout accidentally removed a
digit of the hash. Fix that.
Fixes: https://gitlab.com/buildroot.org/buildroot/-/jobs/1422093322
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>