Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/arch/sparc/kernel/process_32.c b/arch/sparc/kernel/process_32.c
index d9662cf..26cca65 100644
--- a/arch/sparc/kernel/process_32.c
+++ b/arch/sparc/kernel/process_32.c
@@ -110,7 +110,7 @@
 void machine_power_off(void)
 {
 	if (auxio_power_register &&
-	    (strcmp(of_console_device->type, "serial") || scons_pwroff)) {
+	    (!of_node_is_type(of_console_device, "serial") || scons_pwroff)) {
 		u8 power_register = sbus_readb(auxio_power_register);
 		power_register |= AUXIO_POWER_OFF;
 		sbus_writeb(power_register, auxio_power_register);