The relevent boards which used this driver got zapped
in previous release and the driver is never used in the
code and also it doesn't use/do any spi-flash operations.
Commit details for relevent removed boards:
"ARM: at91: remove non-generic boards"
(sha1: f6b42c1403)
Cc: Tom Rini <trini@konsulko.com>
Cc: Albin Tonnerre <albin.tonnerre@free-electrons.com>
Signed-off-by: Jagan Teki <jteki@openedev.com>
7693fb3756