Change sam9x5 with wm8731 work in DSP A mode, this will fix the
left/right channel swap issue.
Signed-off-by: NBo Shen <voice.shen@atmel.com>
Tested-by: NRichard Genoud <richard.genoud@gmail.com>
Signed-off-by: NMark Brown <broonie@linaro.org>