ALSA: firewire-lib: remove restriction for non-blocking mode

Former patches allow non-blocking streams to synchronize with timestamp.
This patch removes the restriction.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/firewire/amdtp.c b/sound/firewire/amdtp.c
index c26dda7..97afc88 100644
--- a/sound/firewire/amdtp.c
+++ b/sound/firewire/amdtp.c
@@ -909,7 +909,7 @@
 
 	if (s->direction == AMDTP_IN_STREAM)
 		context->callback.sc = in_stream_callback;
-	else if ((s->flags & CIP_BLOCKING) && (s->flags & CIP_SYNC_TO_DEVICE))
+	else if (s->flags & CIP_SYNC_TO_DEVICE)
 		context->callback.sc = slave_stream_callback;
 	else
 		context->callback.sc = out_stream_callback;