scsi: mylex: Use the correct style for SPDX License Identifier

This patch corrects the SPDX License Identifier style in header files
related to Mylex DAC960/DAC1100 PCI RAID Controllers. It assigns explicit
block comment to the SPDX License Identifier.

Changes made by using a script provided by Joe Perches here:
https://lkml.org/lkml/2019/2/7/46.

Link: https://lore.kernel.org/r/8833[e-mail]
Suggested-by: Joe Perches <[e-mail]>
Reviewed-by: Hannes Reinecke <[e-mail]>
Signed-off-by: Nishad Kamdar <[e-mail]>
Signed-off-by: Martin K. Petersen <[e-mail]>

drivers/scsi/myrb.h

···
-/* SPDX-License-Identifier: GPL-2.0
- *
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
  * Linux Driver for Mylex DAC960/AcceleRAID/eXtremeRAID PCI RAID Controllers
  *
  * Copyright 2017 Hannes Reinecke, SUSE Linux GmbH <[e-mail]>

drivers/scsi/myrs.h

···
-/* SPDX-License-Identifier: GPL-2.0
- *
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
  * Linux Driver for Mylex DAC960/AcceleRAID/eXtremeRAID PCI RAID Controllers
  *
  * This driver supports the newer, SCSI-based firmware interface only.