MXC: Add a digital audio multiplexer driver

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
diff --git a/arch/arm/plat-mxc/Makefile b/arch/arm/plat-mxc/Makefile
index 545412f..4cbca9d 100644
--- a/arch/arm/plat-mxc/Makefile
+++ b/arch/arm/plat-mxc/Makefile
@@ -10,3 +10,5 @@
 obj-$(CONFIG_ARCH_MXC_IOMUX_V3) += iomux-v3.o
 obj-$(CONFIG_MXC_PWM)  += pwm.o
 obj-$(CONFIG_MXC_ULPI) += ulpi.o
+obj-$(CONFIG_ARCH_MXC_AUDMUX_V1) += audmux-v1.o
+obj-$(CONFIG_ARCH_MXC_AUDMUX_V2) += audmux-v2.o