Update early data document and prerequisites check

Signed-off-by: Xiaokang Qian <xiaokang.qian@arm.com>
diff --git a/include/mbedtls/check_config.h b/include/mbedtls/check_config.h
index d36db4a..4eb1528 100644
--- a/include/mbedtls/check_config.h
+++ b/include/mbedtls/check_config.h
@@ -844,8 +844,9 @@
 
 /* Early data requires PSK related mode defined */
 #if defined(MBEDTLS_SSL_EARLY_DATA) && \
-        ( !defined(MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_ENABLED) && \
-          !defined(MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_EPHEMERAL_ENABLED))
+    ( !defined(MBEDTLS_SSL_SESSION_TICKETS) || \
+      ( !defined(MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_ENABLED) && \
+        !defined(MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_EPHEMERAL_ENABLED) ) )
 #error "MBEDTLS_SSL_EARLY_DATA  defined, but not all prerequisites"
 #endif