Fix FS#12238 - WPS delay on pause introduced by r30097 which was the excuse I wanted anyway to do a better PCM fade on stop/pause implementation. New fade is asynchronous tick-based. Restores skin update points in the WPS that were removed when fading mechanism was changed.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30340 a1c6a512-1295-4272-9138-f99709370657
4 files changed