ALSA: hdspm - Allow for 8192 period size on RME MADI and AES cards

Older RME cards like MADI and AES support period sizes of 8192 samples.
The original hdspm driver already featured this value, apparently, it
was lost during the rewrite.
Signed-off-by: NAdrian Knoth <adi@drcomp.erfurt.thur.de>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

sound/pci/rme9652/hdspm.c

@@ -5673,7 +5673,7 @@ static int snd_hdspm_prepare(struct snd_pcm_substream *substream)
 }
 
 static unsigned int period_sizes_old[] = {
-	64, 128, 256, 512, 1024, 2048, 4096
+	64, 128, 256, 512, 1024, 2048, 4096, 8192
 };
 
 static unsigned int period_sizes_new[] = {