"Mic Bias" is DAPM_SUPPLY so it has to be connected in the route
accordingly.
Fixes audio capture on the board.
Reported-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Tested-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Mark Brown <broonie@kernel.org>