ARM: S5P64X0: 2nd Change to using s3c_gpio_cfgpin_range()

This patch changes the code setting ranges of GPIO pins in mach-s5p64x0 using
s3c_gpio_cfgpin() to use the recently introduced s3c_gpio_cfgpin_range().
NOTE: This is for missed things from the previous patch.

Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>