ALSA: firewire-tascam: Add missing annotation for tscm_hwdep_read_queue()

ALSA: firewire-tascam: Add missing annotation for tscm_hwdep_read_queue()

Sparse reports a warning at tscm_hwdep_read_queue()

warning: context imbalance in tscm_hwdep_read_queue() - unexpected unlock

The root cause is the missing annotation at tscm_hwdep_read_queue()
Add the missing __releases(&tscm->lock) annotation

Signed-off-by: Jules Irenge <jbi.octave@gmail.com>
Acked-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20200311010908.42366-8-jbi.octave@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>