[PATCH] ARM: 2641/1: Adds S3C2400_SPPIN_nCS to arch-s3c2410/regs-spi.h

Patch from Lucas Correia Villa Real

Adds a define to the SPI Card Select bit on the S3C2400 into
include/asm-arm/arch-s3c2410/regs-spi.h

Signed-off-by: Lucas Correia Villa Real
Signed-off-by: Russell King