[S390] Kconfig: menus with depends on HAS_IOMEM.

Add "depends on HAS_IOMEM" to a number of menus to make them
disappear for s390 which does not have I/O memory.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

drivers/mmc/Kconfig

@@ -4,6 +4,7 @@
 
 menuconfig MMC
 	tristate "MMC/SD card support"
+	depends on HAS_IOMEM
 	help
 	  MMC is the "multi-media card" bus protocol.