ARM: S3C64XX: Remove hsmmc1 from Cragganmore

The second MMC slot was only present on revision 1 of Cragganmore so
remove it. Only MMC0 and MMC2 are there on production systems.

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