ASoC: SOF: pci: add missing default_fw_name of JasperLake

jsl_desc missed default_fw_name, this will fail the probe in
nocodec or generice HDA mode due the firmware path is intel/sof/(null)

Signed-off-by: Pan Xiuli <xiuli.pan@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200124213625.30186-6-pierre-louis.bossart@linux.intel.com


Signed-off-by: Mark Brown <broonie@kernel.org>