[SCSI] pmcraid: Fix ppc64 driver build for using cpu_to_le32 on U8 data type

Fix a reported ppc64 driver build issue. Removed cpu_to_le32 conversion
usage for flags in struct pmcraid_ioadl_desc. This was breaking the driver build in ppc64.

drivers/scsi/pmcraid.c: In function 'pmcraid_request_sense':
drivers/scsi/pmcraid.c:2254: warning: large integer implicitly truncated
to unsigned type

Signed-off-by: Anil <Ravindranath&lt;anil_ravindranath@pmc-sierra.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>