megaraid_sas: fix whitespace errors

Fix whitespace and indentation errors.  No code change.

[jejb: checkpatch fixes]
Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
Reviewed-by: NHannes Reinecke <hare@suse.de>
Acked-by: NSumit Saxena <sumit.saxena@avagotech.com>
Signed-off-by: NJames Bottomley <JBottomley@Odin.com>