ASoC: wm8994: Ensure lambda is zeroed for WM8994
ASoC: wm8994: Ensure lambda is zeroed for WM8994

Signed-off-by: Mark Brown <b51b9a92386687a9ac927cebfa0f978adeb8cea5@opensource.wolfsonmicro.com>

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