the 'platform' pointer in sst_map_modules_to_pipe() is deref in caller
function so we need to check for it in this function
Reported-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NVinod Koul <vinod.koul@intel.com>
Signed-off-by: NMark Brown <broonie@kernel.org>