ssl_server2: Add read early data support

Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
diff --git a/tests/data_files/tls13_early_data.txt b/tests/data_files/tls13_early_data.txt
index 0c84b07..95811fd 100644
--- a/tests/data_files/tls13_early_data.txt
+++ b/tests/data_files/tls13_early_data.txt
@@ -1,3 +1,4 @@
 EarlyData context: line 0                                                    lf
 EarlyData context: line 1                                                    lf
+EarlyData context: line 2                                                    lf
 EarlyData context: If it appears, that means early_data received.