The S variable is now the default one.
(From OE-Core rev: a8b1081791af60873c6fd26cbf298cfe1886f97d)
Signed-off-by: Constantin Musca <constantinx.musca@intel.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>