Add CONFIG(s) required for NAND and NOR flash controller usage.
It defines MTD, Jffs2 and UBIFS file system required for controllers.

It also enables IFC controller
Signed-off-by: NPrabhakar Kushwaha <prabhakar@freescale.com>
Signed-off-by: NKumar Gala <galak@kernel.crashing.org>