freerdp: fix sound plugin not linked correctly against libpulse and a crash in the pulse plugin when encountering a NULL device name

This update fixes the following issue with freerdp:
- bnc#785437: fix sound plugin not linked correctly against libpulse and a crash in the pulse plugin when encountering a NULL device name

Fixed bugs
bnc#785437
openSUSE:12.2/freerdp: Bug
Selected Binaries
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