Enable compilation test for Fedora 26 and Ubuntu 16.04. The tests
will run for all combinations of RELEASE={0|1} and PLATFORM={sbl|uefi}
Signed-off-by: Geoffroy Van Cutsem <geoffroy.vancutsem@intel.com>
Enable the Travis CI testing for all combinations of variables
that can be set at compile-time. I.e. RELEASE={0|1} and
PLATFORM={0|1}
Signed-off-by: Geoffroy Van Cutsem <geoffroy.vancutsem@intel.com>