serial/uartlite: Let it build on any arch with IOMEM

Being a soft core, it can be located not only on PPC or Microblaze
platforms.

Since the driver already does endianness detection we only need to
change the Kconfig to use it in other arches.

This is also done in other softcores as xilinx-spi.
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/tty/serial/Kconfig

@@ -594,7 +594,7 @@ config SERIAL_IMX_CONSOLE
 
 config SERIAL_UARTLITE
 	tristate "Xilinx uartlite serial port support"
-	depends on PPC32 || MICROBLAZE || MFD_TIMBERDALE || ARCH_ZYNQ
+	depends on HAS_IOMEM
 	select SERIAL_CORE
 	help
 	  Say Y here if you want to use the Xilinx uartlite serial controller.