MIPS: SiByte: Enable pata_platform with SWARM defconfig

Enable support for the onboard PATA PIO mode3 interface, which is one of
the boot devices supported by the CFE firmware with the Broadcom SWARM
board.  Include disk, CD-ROM and generic storage drivers.

Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>

arch/mips/configs/sb1250_swarm_defconfig

@@ -47,6 +47,14 @@ CONFIG_BLK_DEV_RAM_SIZE=9220
 CONFIG_CDROM_PKTCDVD=m
 CONFIG_ATA_OVER_ETH=m
 CONFIG_RAID_ATTRS=m
+CONFIG_BLK_DEV_SD=y
+CONFIG_BLK_DEV_SR=y
+CONFIG_CHR_DEV_SG=y
+CONFIG_SCSI_CONSTANTS=y
+# CONFIG_SCSI_LOWLEVEL is not set
+CONFIG_ATA=y
+# CONFIG_ATA_BMDMA is not set
+CONFIG_PATA_PLATFORM=y
 CONFIG_NETDEVICES=y
 CONFIG_MACVLAN=m
 CONFIG_SB1250_MAC=y