greybus: add -Wall to the build flags

In an attempt to turn on as many options as we can to catch warnings
early, let's enable -Wall.

Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>
Reviewed-by: Alex Elder <elder@linaro.org>
This commit is contained in:
Greg Kroah-Hartman 2014-11-19 19:09:53 -08:00
commit 7486dfd161