Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/drivers/net/ethernet/faraday/Kconfig b/drivers/net/ethernet/faraday/Kconfig
index 0fb8df6..73e4f26 100644
--- a/drivers/net/ethernet/faraday/Kconfig
+++ b/drivers/net/ethernet/faraday/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
 #
 # Faraday device configuration
 #
@@ -31,6 +32,7 @@
 	depends on ARM || NDS32 || COMPILE_TEST
 	depends on !64BIT || BROKEN
 	select PHYLIB
+	select MDIO_ASPEED if MACH_ASPEED_G6
 	---help---
 	  This driver supports the FTGMAC100 Gigabit Ethernet controller
 	  from Faraday. It is used on Faraday A369, Andes AG102 and some