change #include "s3c24xx_regs.h" to <flash/nand/s3c24xx_regs.h>

Changes from the flat namespace to heirarchical one.  Instead of writing:

	#include "s3c24xx_regs.h"

the following form should be used.

	#include <flash/nand/s3c24xx_regs.h>

The exception is from .c files in the same directory.