Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/drivers/scsi/hpsa_cmd.h b/drivers/scsi/hpsa_cmd.h
index 21a726e..7825cbf 100644
--- a/drivers/scsi/hpsa_cmd.h
+++ b/drivers/scsi/hpsa_cmd.h
@@ -448,7 +448,7 @@
 	struct hpsa_scsi_dev_t *phys_disk;
 
 	int abort_pending;
-	struct hpsa_scsi_dev_t *reset_pending;
+	struct hpsa_scsi_dev_t *device;
 	atomic_t refcount; /* Must be last to avoid memset in hpsa_cmd_init() */
 } __aligned(COMMANDLIST_ALIGNMENT);
 
@@ -517,6 +517,7 @@
 	u8 reserved[3];
 	u8 chain_indicator;
 #define IOACCEL2_CHAIN 0x80
+#define IOACCEL2_LAST_SG 0x40
 };
 
 /*