Fix for Kickoff favorites migration

[Eike Hein]

Hi,

an update script that performs an important config format
conversion for Kickoff favorites we shipped in 5.5 is
unfortunately buggy, causing Kickoff favorites to get
mangled at first startup of 5.5. You can find a patch to
resolve this problem here:

https://quickgit.kde.org/?p=plasma-desktop.git&a=commit&h=97ced66da372737ae5d36d86c9bc0c6fe684d842


Cheers,
Eike