UIO: arch/arm/Kconfig: Make UIO available on ARM architecture

Source drivers/uio/Kconfig to make UIO available in menuconfig if ARCH=arm.
Signed-off-by: NHans J Koch <hjk@linutronix.de>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

arch/arm/Kconfig

@@ -1174,6 +1174,8 @@ source "drivers/dma/Kconfig"
 
 source "drivers/dca/Kconfig"
 
+source "drivers/uio/Kconfig"
+
 endmenu
 
 source "fs/Kconfig"