New tests rely on irq_offload() actually being based on an interrupt. So let's base it on a new SW interrupt. Signed-off-by: Alberto Escolar Piedras <alpi@oticon.com>
Signed-off-by: Alberto Escolar Piedras <alpi@oticon.com> Signed-off-by: Anas Nashif <anas.nashif@intel.com>