cros_ec: Sync up with latest Chrome OS EC version

The EC messages have been expanded and some parts have been renamed.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/include/cros_ec_message.h b/include/cros_ec_message.h
index b1da53d..36e2d83 100644
--- a/include/cros_ec_message.h
+++ b/include/cros_ec_message.h
@@ -23,7 +23,7 @@
 	MSG_PROTO_BYTES		= MSG_HEADER_BYTES + MSG_TRAILER_BYTES,
 
 	/* Max length of messages */
-	MSG_BYTES		= EC_HOST_PARAM_SIZE + MSG_PROTO_BYTES,
+	MSG_BYTES		= EC_PROTO2_MAX_PARAM_SIZE + MSG_PROTO_BYTES,
 };
 
 #endif