These need to be in the CODEC since the DAIs supported by the CODECs
aren't static.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

The WM8993 analogue control is shared with other devices in the same
product line.  Since this is a very substantial proportion of the
driver move the definitions of these controls into a new wm_hubs module
which allows them to be shared between the two.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>