[SCSI] sgiwd93: use cached memory access to make driver work on IP28

SGI IP28 machines would need special treatment (enable adding addtional
wait states) when accessing memory uncached. To avoid this pain I
changed the driver to use only cached access to memory.

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig
index 3e161cd..14fc7f3 100644
--- a/drivers/scsi/Kconfig
+++ b/drivers/scsi/Kconfig
@@ -345,7 +345,7 @@
 
 config SGIWD93_SCSI
 	tristate "SGI WD93C93 SCSI Driver"
-	depends on SGI_IP22 && SCSI
+	depends on SGI_HAS_WD93 && SCSI
   	help
 	  If you have a Western Digital WD93 SCSI controller on
 	  an SGI MIPS system, say Y.  Otherwise, say N.