BUILD: tcp_sample: include missing errors.h and session-t.h
Both are used without being defined as they were inherited from other
files.
diff --git a/src/tcp_sample.c b/src/tcp_sample.c
index 8242fa4..0ea7d79 100644
--- a/src/tcp_sample.c
+++ b/src/tcp_sample.c
@@ -33,11 +33,13 @@
#include <haproxy/api.h>
#include <haproxy/arg.h>
#include <haproxy/connection.h>
+#include <haproxy/errors.h>
#include <haproxy/global.h>
#include <haproxy/listener-t.h>
#include <haproxy/namespace.h>
#include <haproxy/proxy-t.h>
#include <haproxy/sample.h>
+#include <haproxy/session-t.h>
#include <haproxy/tools.h>