drivers: sai: add pinctrl support in mcux sai
drivers: sai: add pinctrl support in mcux sai

enable i2s pinctrl

Signed-off-by: Hake Huang <141c0384c6b2febca367ae94dc4dc40a33a7ba79@oss.nxp.com>

galak/zephyr,galak/zephyr,zephyrproject-rtos/zephyr,finikorg/zephyr,zephyrproject-rtos/zephyr,finikorg/zephyr,zephyrproject-rtos/zephyr,galak/zephyr,zephyrproject-rtos/zephyr,finikorg/zephyr,finikorg/zephyr,galak/zephyr,finikorg/zephyr,galak/zephyr,zephyrproject-rtos/zephyr