Commit 4eaa9819 changed semantics of
private_value member of kcontrol. This resulted in inability to control
amplifier and subsequently in very low output volume.
Tested-by: NJohannes Schauer <josch@pyneo.org>
Signed-off-by: NPaul Fertser <fercerpav@gmail.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>