In include/linux/io.h the declarations of ioread64 and iowrite64
which make use of readq/writeq are guarded with CONFIG_64BIT so
guard the sandbox declarations of readq and writeq also with
CONFIG_64BIT.
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Andrew Goodbody <andrew.goodbody@linaro.org>
(cherry picked from commit 99afa58e6d)