enigma2-plugin-picons-ziggo.tvhome: update tarball date to 20120504
enigma2-plugin-picons-ziggo.tvhome: update tarball date to 20120504

The 20120320 tarball contained the wrong path.
This resulted in an empty package.

The 20120504 tarball contains no picon updates, just a path fix.

SIFTeam/openembedded,SIFTeam/openembedded,SIFTeam/openembedded,SIFTeam/openembedded,SIFTeam/openembedded,SIFTeam/openembedded,SIFTeam/openembedded