mx31ads: Provide an IRQ range to the WM835x on the 1133-EV1 module

The WM8350 core won't actually use the range yet, but it will in
future and the platform data to configure it is there now.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>