gpio: samsung: remove s5p64x0 related gpio codes
gpio: samsung: remove s5p64x0 related gpio codes

This patch removes gpio codes for s5p6440 and s5p6450 SoCs.

Acked-by: Linus Walleij <9cd9d802d23c0ed5e224beabf4ae4a5c478746ef@linaro.org>
Signed-off-by: Kukjin Kim <3fc711f4e08bc570a586748633ff7c76d0e1e253@samsung.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs