Compilation error in case of non-DT configuration without this
of.h header file.
Signed-off-by: NNicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: NJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Acked-by: NAlan Stern <stern@rowland.harvard.edu>