T196 - reduction: integration of sync_reduce into smlt_reduce
T196 - reduction: integration of sync_reduce into smlt_reduce

Signed-off-by: Reto Achermann <66f6ea3e040423755b3cf26edfe6c7fb1f9adc27@inf.ethz.ch>

libsmelt/libsmelt,libsmelt/libsmelt,libsmelt/libsmelt,libsmelt/libsmelt