ARM: dts: am437x-sk-evm: Switch using simple-audio-card for audio support
ARM: dts: am437x-sk-evm: Switch using simple-audio-card for audio support

The sound support consist only Headset output on the board and can be
handled by "simple-audio-card".
Also enable the Line-In route as the board has support for it.

Signed-off-by: Peter Ujfalusi <e5c0b4cdf99ae1d408b9c497159e74b54e02e008@ti.com>
Tested-by: Felipe Balbi <94dddeeef08b001e003cce128ddc162a4e2c6cd2@ti.com>
Signed-off-by: Tony Lindgren <1001e8702733cced254345e193c88aaa47a4f5de@atomide.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs