ALSA: aica: Fix a long-time build breakage

mainline inclusion
from mainline-v5.2-rc1
commit 534420c6
category: bugfix
bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9DD86
CVE: CVE-2024-26654

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=534420c6ff87d3052540f1fd346e0adcff440819



--------------------------------

The build of aica sound driver has been broken since the timer API
conversion and some code rewrite.  This patch fixes the breakage by
using the common substream field, as well as a bit cleaning up wrt the
timer handling in the code.

Fixes: d522bb6a ("ALSA: sh: aica: Convert timers to use timer_setup()")
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: liwei <liwei728@huawei.com>