scsi: MAINTAINERS: Fix typo in cxlflash stanza

The uapi header file listed in the cxlflash stanza has a typo.

Removed the trailing 's' from the filename.

Reported-by: Joe Perches <[e-mail]>
Signed-off-by: Matthew R. Ochs <[e-mail]>
Acked-by: Uma Krishnan <[e-mail]>
Signed-off-by: Martin K. Petersen <[e-mail]>

MAINTAINERS

···
 L:	[e-mail]
 S:	Supported
 F:	drivers/scsi/cxlflash/
-F:	include/uapi/scsi/cxlflash_ioctls.h
+F:	include/uapi/scsi/cxlflash_ioctl.h
 F:	Documentation/powerpc/cxlflash.txt
 
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