of_property_read_u32 return 0 on success. The check was using a ! to
return error. Fix the if condition.
Signed-off-by: NRohit Vaswani <rvaswani@codeaurora.org>
Acked-by: NLinus Walleij <linus.walleij@linaro.org>
Reviewed-by: NPankaj Jangra  <jangra.pankaj9@gmail.com>
Cc: "Bird, Tim" <Tim.Bird@sonymobile.com>
Signed-off-by: NDavid Brown <davidb@codeaurora.org>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>