trau_sync: Add the V.110 sync pattern

ITU-T V.110 is used in GSM CSD (Circuit Switched Data).  The frames
are rather similar to TRAU frames, so we can use the trau_sync code
for it.  This commit adds the related definition.

Related: OS#4395
Change-Id: I3aab5c3f494f6ea2b11f3cf69fb09bc77ea941d8
diff --git a/src/trau/trau_sync.c b/src/trau/trau_sync.c
index dba9cd1..b36e7c1 100644
--- a/src/trau/trau_sync.c
+++ b/src/trau/trau_sync.c
@@ -145,6 +145,19 @@
 		},
 		.byte_len = 20,
 	},
+	[OSMO_TRAU_SYNCP_V110] = {
+		/* See Table 2 of ITU-T V.110 */
+		.name = "V110",
+		.byte_pattern = {
+			0x00, 0x80, 0x80, 0x80, 0x80,
+			0x80, 0x80, 0x80, 0x80, 0x80,
+		},
+		.byte_mask = {
+			0xff, 0x80, 0x80, 0x80, 0x80,
+			0x80, 0x80, 0x80, 0x80, 0x80,
+		},
+		.byte_len = 10,
+	},
 };
 
 #if 0