It renames the legacy name mxc used in audmux function and macro
to imx.
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>
Acked-by: NSascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>