ARM: ux500: Provide auxdata to ux500 ASoC driver

Ux500 ASoC driver is expected to have a specific device name to get
clock resources correctly.  This patch provides the necessary
OF_DEV_AUXDATA to match the name in DT and non-DT cases.

Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>