ASoC: Declare 2 channels for WM8974

The device is a mono device but it can read two channel data and
many I2S controllers only understand 2 channels.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Mark Brown 2009-06-30 19:01:52 +01:00
commit 33d81af4d1