ALSA: compress_offload: use safe list iteration in snd_compr_task_seq()

The sequence function can call snd_compr_task_free_one(). Use
list_for_each_entry_safe_reverse() to make sure that the used
pointers are safe.

Link: https://lore.kernel.org/linux-sound/f2769cff-6c7a-4092-a2d1-c33a5411a182@stanley.mountain/


Fixes: 04177158 ("ALSA: compress_offload: introduce accel operation mode")
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Cc: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20241217100707.732766-1-perex@perex.cz