ALSA: Kill snd_assert() in sound/isa/*

Kill snd_assert() in sound/isa/*, either removed or replaced with
if () with snd_BUG_ON().

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
diff --git a/sound/isa/sb/sb16_main.c b/sound/isa/sb/sb16_main.c
index f7e8192..2a6cc1c 100644
--- a/sound/isa/sb/sb16_main.c
+++ b/sound/isa/sb/sb16_main.c
@@ -669,7 +669,8 @@
 static int snd_sb16_set_dma_mode(struct snd_sb *chip, int what)
 {
 	if (chip->dma8 < 0 || chip->dma16 < 0) {
-		snd_assert(what == 0, return -EINVAL);
+		if (snd_BUG_ON(what))
+			return -EINVAL;
 		return 0;
 	}
 	if (what == 0) {