Dep-wait for vlc on sparc

[Christophe Mutricy <xtophe@chewa.net>]

Hello,

libc6-dev 2.9-20 is missing scsi/scsi.h which is needed to compile vlc.
So we need to wait for libc6-dev 2.9-21 before retrying to build vlc on
sparc.

dw vlc_1.0.0-1 . sparc . -m 'libc6-dev (>=2.9-21)'

Thanks,

-- 
Xtophe