@Nagarjuna-Reddy I can't test this right now, but first I think you need to remove the sdcard module as it will likely be managing the registers:
rmmod mtk_sd
Then I expect you can use the GPIO like so:
gpioctl dirout-high 22
gpioctl get 22
gpioctl dirout-low 22
gpioctl get 22
cat /sys/class/gpio/gpio22/value