[SCSI] ipr: add writeq definition if needed

Compiling the driver will fail on 32 bit powerpc and other
architectures where writeq is not defined.  This patch adds a
definition for writeq.

Signed-off-by: Wayne Boyer <[email protected]>
Acked-by: Brian King <[email protected]>
Signed-off-by: James Bottomley <[email protected]>
1 file changed