bugfix: Fix wl_desktop_shell compiler warning for Mike
bugfix: Fix wl_desktop_shell compiler warning for Mike

The keys array stores keys as unsigned int, so with a little bit of
casting voodoo, we can avoid the nasty compiler warning messages about
void pointers used in arithmetic.

Signed-off-by: Chris Michael <48d1b61d21f8504b6dc08474b224ab6407ac8581@comcast.net>

FlorentRevest/Enlightenment,FlorentRevest/Enlightenment,tizenorg/platform.upstream.enlightenment,rvandegrift/e,rvandegrift/e,tizenorg/platform.upstream.enlightenment,FlorentRevest/Enlightenment,tizenorg/platform.upstream.enlightenment,rvandegrift/e,tasn/enlightenment,tasn/enlightenment,tasn/enlightenment