scsi: pmcraid: Don't use GFP_DMA in pmcraid_alloc_sglist()

The driver doesn't express DMA addressing limitation under 32-bits anywhere
else, so remove the spurious GFP_DMA allocation.

Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Christoph Hellwig <[e-mail]>
Signed-off-by: Martin K. Petersen <[e-mail]>

drivers/scsi/pmcraid.c

···
 		return NULL;
 
 	sglist->order = order;
-	sgl_alloc_order(buflen, order, false,
-			GFP_KERNEL | GFP_DMA | __GFP_ZERO, &sglist->num_sg);
+	sgl_alloc_order(buflen, order, false, GFP_KERNEL | __GFP_ZERO,
+			&sglist->num_sg);
 
 	return sglist;
 }