alsa: Increasing period size for ultrasonic usecase

Bug: 265256151
Change-Id: I201200e891b0bb5294757844e5f79f4cdecaad4d
Signed-off-by: yixuanjiang <yixuanjiang@google.com>
diff --git a/alsa/aoc_alsa_pcm.c b/alsa/aoc_alsa_pcm.c
index 46b876b..f678584 100644
--- a/alsa/aoc_alsa_pcm.c
+++ b/alsa/aoc_alsa_pcm.c
@@ -133,7 +133,7 @@
 	.channels_max = 4,
 	.buffer_bytes_max = 16384 * 6,
 	.period_bytes_min = 16,
-	.period_bytes_max = 7680,
+	.period_bytes_max = 11520,
 	.periods_min = 2,
 	.periods_max = 1024 * 6,
 };