trusty: tipc-test: Fix D argument

The D flag requires an argument so it should be followed by a colon
in sopts. Adding the missing colon is necessary to prevent a segfault.

Test: path/to/tipc-test -D VSOCK:200:1
Bug None

Change-Id: I78119b7e42aba5d30b62d88ff5d94c01dbc2eb64
diff --git a/trusty/libtrusty/tipc-test/tipc_test.c b/trusty/libtrusty/tipc-test/tipc_test.c
index 3cf0c05..121837d 100644
--- a/trusty/libtrusty/tipc-test/tipc_test.c
+++ b/trusty/libtrusty/tipc-test/tipc_test.c
@@ -67,7 +67,7 @@
 static const char* receiver_name = "com.android.trusty.memref.receiver";
 static const size_t memref_chunk_size = 4096;
 
-static const char* _sopts = "hsvDS:t:r:m:b:B:";
+static const char* _sopts = "hsvD:S:t:r:m:b:B:";
 /* clang-format off */
 static const struct option _lopts[] =  {
     {"help",    no_argument,       0, 'h'},