ALSA: pcm: Fix yet more compile warning at replacement with kstrtoul()

ALSA: pcm: Fix yet more compile warning at replacement with kstrtoul()

The previous fix brought yet another compile warning at pr_debug()
call with the changed size.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Closes: https://lore.kernel.org/20240902132904.5ee173f3@canb.auug.org.au
Fixes: 43b42ed438bf ("ALSA: pcm: Fix the previous conversion to kstrtoul()")
Tested-by: Stephen Rothwell <sfr@canb.auug.org.au>
Link: https://patch.msgid.link/20240902062217.9777-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>