ASoC: tlv320aic3x: Connect 'Left Line1R Mux' and 'Right Line1L Mux'

The two paths were not connected in the DAPM route causing the associated
routes to be non working and the following warnings printed in the logs:
tlv320aic3x-codec 0-001b: ASoC: mux Right Line1L Mux has no paths
tlv320aic3x-codec 0-001b: ASoC: mux Left Line1R Mux has no paths

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>