mtd: kirkwood: allow machines to register RnB callback

Add a kirkwood_nand_init_rnb() call to allow boards which
have RnB line detection to register this instead of a
static delay.

Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2 files changed