AD slots definitions for ab8500 codec were erroneously swapped between
even and odd channels.  Fix this by swapping the definitions to be
coherent with the channel number.
Signed-off-by: NFabio Baltieri <fabio.baltieri@linaro.org>
Acked-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>