scsi: MAINTAINERS: Make cxlflash obsolete

The cxlflash driver is no longer actively maintained and we intend to
remove it in a future kernel release. Change its status to obsolete.

While we're here, Matthew Ochs no longer works at IBM and is no longer in a
position to access cxlflash hardware, so remove him from the maintainers
list.

Signed-off-by: Andrew Donnellan <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Martin K. Petersen <[email protected]>

Author: ajdlinux

MAINTAINERS

@@ -5781,10 +5781,9 @@ F:	include/uapi/misc/cxl.h
 
 CXLFLASH (IBM Coherent Accelerator Processor Interface CAPI Flash) SCSI DRIVER
 M:	Manoj N. Kumar <[email protected]>
-M:	Matthew R. Ochs <[email protected]>
 M:	Uma Krishnan <[email protected]>
 L:	[email protected]
-S:	Supported
+S:	Obsolete
 F:	Documentation/arch/powerpc/cxlflash.rst
 F:	drivers/scsi/cxlflash/
 F:	include/uapi/scsi/cxlflash_ioctl.h