[MMC] Add Kconfig/Makefile changes for MMC support.

Since this is currently ARM-only, I've dropped the drivers/Kconfig
change for the time being.

arch/arm/Kconfig

@@ -631,6 +631,8 @@ source "drivers/misc/Kconfig"
 
 source "drivers/usb/Kconfig"
 
+source "drivers/mmc/Kconfig"
+
 
 menu "Kernel hacking"
 

drivers/Makefile

@@ -49,4 +49,5 @@ obj-$(CONFIG_ISDN)		+= isdn/
 obj-$(CONFIG_MCA)		+= mca/
 obj-$(CONFIG_EISA)		+= eisa/
 obj-$(CONFIG_CPU_FREQ)		+= cpufreq/
+obj-$(CONFIG_MMC)		+= mmc/
 obj-y				+= firmware/