ALSA: emu10k1: simplify interrupt handler, part 1

IPR_CHANNELNUMBERMASK cannot be non-zero when IPR_CHANNELLOOP is unset,
so join marking them as handled.
This logically reverts part of commit f453e20d ("ALSA update
0.9.3a"), which made the inverse change with no explanation.
Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Link: https://lore.kernel.org/r/20230518093047.3697887-1-oswald.buddenhagen@gmx.deSigned-off-by: Takashi Iwai <tiwai@suse.de>

sound/pci/emu10k1/irq.c

@@ -79,9 +79,8 @@ irqreturn_t snd_emu10k1_interrupt(int irq, void *dev_id)
 				val >>= 1;
 				pvoice++;
 			}
-			status &= ~IPR_CHANNELLOOP;
+			status &= ~(IPR_CHANNELLOOP | IPR_CHANNELNUMBERMASK);
 		}
-		status &= ~IPR_CHANNELNUMBERMASK;
 		if (status & (IPR_ADCBUFFULL|IPR_ADCBUFHALFFULL)) {
 			if (emu->capture_interrupt)
 				emu->capture_interrupt(emu, status);