ARM: SAMSUNG: Implements cfg_gpio function for Samsung touchscreen

This patch implements cfg_gpio function for Samsung touchscreen.
And also modifies the H1940 machine respectively.

Signed-off-by: Naveen Krishna Ch <ch.naveen@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
6 files changed