command.c: Print prompt when starting up

Change-Id: I18e4351609ab10c06a2fa197cb9f7a66269799a0
diff --git a/sysmoOCTSIM/command.c b/sysmoOCTSIM/command.c
index 9502f05..3210b27 100644
--- a/sysmoOCTSIM/command.c
+++ b/sysmoOCTSIM/command.c
@@ -71,6 +71,11 @@
 	g_cmds.buf[g_cmds.buf_idx++] = c;
 }
 
+void command_print_prompt(void)
+{
+	printf(g_cmds.prompt);
+}
+
 void command_try_recv(void)
 {
 	unsigned int i = 0;