[Bug 68506] change dependency on xkeyboard-config

[Pierre Buard]

Public bug reported:

Binary package hint: kubuntu-desktop

Since the description of xkeyboard-config is :
Transitional package for xkb-data
This package is not needed and can safely be removed from the system
once no other packages depend on it.

Change the dependency of kubuntu-desktop to xkb-data.

** Affects: kubuntu-meta (Ubuntu)
     Importance: Undecided
         Status: Unconfirmed

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change dependency on xkeyboard-config
https://launchpad.net/bugs/68506