mtd: Drop unused fsmc_nand driver

This is not used since this commit:

   570c3dcfc15 arm: Remove spear600 boards and the rest of SPEAr support

Drop the driver and Kconfig option.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Michael Trimarchi <michael@amarulasolutions.com>
3 files changed