ASoC: tlv320aic31xx: Fix GPIO header includes

Use of gpiod_* needs <linux/gpio/consumer.h>, add this here.

Fixes: b6b247cd ("ASoC: tlv320aic31xx: Switch GPIO handling to use gpiod_* API")
Signed-off-by: Andrew F. Davis <afd@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>