smdk6410: add original stuff

Signed-off-by: Fudong Bai <fudongbai@gmail.com>
smdk6410: remove smsc911x related code

Signed-off-by: Fudong Bai <fudongbai@gmail.com>
smdk6410: cleanup header files

Signed-off-by: Fudong Bai <fudongbai@gmail.com>
smdk6410: add nand support

Signed-off-by: Fudong Bai <fudongbai@gmail.com>
smdk6410: add nand log

Signed-off-by: Fudong Bai <fudongbai@gmail.com>