Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/drivers/scsi/pm8001/pm8001_defs.h b/drivers/scsi/pm8001/pm8001_defs.h
index 199527d..48e0624 100644
--- a/drivers/scsi/pm8001/pm8001_defs.h
+++ b/drivers/scsi/pm8001/pm8001_defs.h
@@ -132,4 +132,12 @@
 	PM8001F_RUN_TIME	= (1U << 1),
 };
 
+/**
+ * Phy Status
+ */
+#define PHY_LINK_DISABLE	0x00
+#define PHY_LINK_DOWN		0x01
+#define PHY_STATE_LINK_UP_SPCV	0x2
+#define PHY_STATE_LINK_UP_SPC	0x1
+
 #endif