Add audio support to device tree

[hansemro]

Resources:

• https://github.com/hansemro/kernel_omap_otter-common/blob/84763bbf0a9138cb0ba7b42411cd8d0405c1c684/arch/arm/mach-omap2/board-4430kc1-tablet.c#L173-L202
• https://github.com/hansemro/kernel_omap_otter-common/blob/84763bbf0a9138cb0ba7b42411cd8d0405c1c684/arch/arm/mach-omap2/board-4430kc1-tablet.c#L598-L602
• https://www.ti.com/product/TWL6040
• https://www.ti.com/lit/gpn/tlv320aic3110
• Documentation/devicetree/bindings/sound/tlv320aic31xx.txt

TWL6040:

AIC3110:

• [i2c-3:18]
• 3V regulator (VUSIM)
• clock: 19200000 Hz (audio_mclk1)

[hansemro]

I don't think the TWL6040 is present on the device. I am not sure why I thought it did...