MBEDTLS_SSL_MAX_EARLY_DATA_SIZE: default value should be commented out in config

Numeric options should be commented out with their default values in the config
file, and a separate header file should set the default value if necessary.
This was done for most other options in #8161; do it here for
MBEDTLS_SSL_MAX_EARLY_DATA_SIZE.

Signed-off-by: Tom Cosgrove <tom.cosgrove@arm.com>
diff --git a/include/mbedtls/mbedtls_config.h b/include/mbedtls/mbedtls_config.h
index 2f5c672..77644a1 100644
--- a/include/mbedtls/mbedtls_config.h
+++ b/include/mbedtls/mbedtls_config.h
@@ -1848,7 +1848,7 @@
  * production.
  *
  */
-#define MBEDTLS_SSL_MAX_EARLY_DATA_SIZE        1024
+//#define MBEDTLS_SSL_MAX_EARLY_DATA_SIZE        1024
 
 /**
  * \def MBEDTLS_SSL_PROTO_DTLS