ARM: S3C64XX: Fix the memory mapped GPIOs on Cragganmore

Rather than letting them get allocated dynamically where we don't know
where they are, and also name the data line resource as gpio-generic
requires that.  Without these changes the GPIOs are useless.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>