greybus: kernel_ver: Add kstrtobool()

It was added in 4.6 and is required for one of the use case, copy it.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
1 file changed
tree: d82695720f2ceb099ef9a6253255c45805895585
  1. drivers/