Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/net/rds/stats.c b/net/rds/stats.c
index 73be187..9e87da4 100644
--- a/net/rds/stats.c
+++ b/net/rds/stats.c
@@ -76,6 +76,9 @@
 	"cong_update_received",
 	"cong_send_error",
 	"cong_send_blocked",
+	"recv_bytes_added_to_sock",
+	"recv_bytes_freed_fromsock",
+	"send_stuck_rm",
 };
 
 void rds_stats_info_copy(struct rds_info_iterator *iter,