trau_sync: support more than 40 bytes sync pattern.

40 byte sync pattern size is fine for 16 subslots but with an E1 line we
can go up to 64kbps, which is 4 times as much. Lets increase the maximum
pattern size to 160 to be prepared for full 64k slots.

Change-Id: I5be127ed5e39cb154e949b16fb08c26a1d816357
Related: OS#5198
diff --git a/src/trau/trau_sync.c b/src/trau/trau_sync.c
index 9c7303f..83c7903 100644
--- a/src/trau/trau_sync.c
+++ b/src/trau/trau_sync.c
@@ -31,7 +31,7 @@
 
 #define S(x)	(1 << (x))
 
-#define MAX_TRAU_BYTES 	40
+#define MAX_TRAU_BYTES	160
 
 #define T_SYNC		1