ata: pata_atiixp: Avoid overwriting initialised field in 'atiixp_sht'

Fixes the following W=1 kernel build warning(s):

drivers/ata/pata_atiixp.c:256:19: warning: initialized field overwritten [-Woverride-init]
drivers/ata/pata_atiixp.c:256:19: note: (near initialization for ‘atiixp_sht.sg_tablesize’)

Cc: Jens Axboe <[e-mail]>
Cc: ATI Inc <[e-mail]>
Cc: [e-mail]
Signed-off-by: Lee Jones <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Jens Axboe <[e-mail]>

drivers/ata/pata_atiixp.c

···
 }
 
 static struct scsi_host_template atiixp_sht = {
-	ATA_BMDMA_SHT(DRV_NAME),
+	ATA_BASE_SHT(DRV_NAME),
 	.sg_tablesize		= LIBATA_DUMB_MAX_PRD,
+	.dma_boundary		= ATA_DMA_BOUNDARY,
 };
 
 static struct ata_port_operations atiixp_port_ops = {