sound: annotate ->poll() instances

sound/core/compress_offload.c

sound/core/control.c

sound/core/hwdep.c

sound/core/info.c

sound/core/init.c

sound/core/oss/pcm_oss.c

sound/core/pcm_native.c

sound/core/rawmidi.c

sound/core/seq/oss/seq_oss.c

sound/core/seq/oss/seq_oss_device.h

sound/core/seq/oss/seq_oss_rw.c

sound/core/seq/seq_clientmgr.c

sound/core/timer.c

sound/firewire/bebob/bebob_hwdep.c

sound/firewire/dice/dice-hwdep.c

sound/firewire/digi00x/digi00x-hwdep.c

sound/firewire/fireface/ff-hwdep.c

sound/firewire/fireworks/fireworks_hwdep.c

sound/firewire/motu/motu-hwdep.c

sound/firewire/oxfw/oxfw-hwdep.c