ARM: S3C24XX: Wrapper s3c2410_gpio_setpin and s3c2410_gpio_pullup()

Change s3c2410_gpio_setpin() and s3c2410_gpio_pullup() to use
the new s3c_ gpio configuration calls until all their users
are converted.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>