tls13: Rename early_data_count to total_early_data_size

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
diff --git a/include/mbedtls/ssl.h b/include/mbedtls/ssl.h
index 15bd6fd..9a66663 100644
--- a/include/mbedtls/ssl.h
+++ b/include/mbedtls/ssl.h
@@ -1869,7 +1869,7 @@
      */
     uint8_t MBEDTLS_PRIVATE(discard_early_data_record);
 #endif
-    uint32_t MBEDTLS_PRIVATE(early_data_count);  /*!< Number of received/written early data bytes */
+    uint32_t MBEDTLS_PRIVATE(total_early_data_size); /*!< Number of received/written early data bytes */
 #endif /* MBEDTLS_SSL_EARLY_DATA */
 
     /*