tls13: cli: Refine early data status

The main purpose of the change is to
know from the status, at any point in
the handshake, if early data can be
sent or not and why.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
diff --git a/library/ssl_tls.c b/library/ssl_tls.c
index 8afedde..3bbd4ca 100644
--- a/library/ssl_tls.c
+++ b/library/ssl_tls.c
@@ -1100,7 +1100,7 @@
 
 #if defined(MBEDTLS_SSL_EARLY_DATA)
 #if defined(MBEDTLS_SSL_CLI_C)
-    ssl->early_data_status = MBEDTLS_SSL_EARLY_DATA_STATUS_NOT_SENT;
+    ssl->early_data_status = MBEDTLS_SSL_EARLY_DATA_STATUS_UNKNOWN;
 #endif
 #if defined(MBEDTLS_SSL_SRV_C)
     ssl->discard_early_data_record = MBEDTLS_SSL_EARLY_DATA_NO_DISCARD;