ASoC: Intel: Skylake: Strip manifest for Skylake platform

Future firmware updates may comes with extended manifest so invoke
skl_dsp_strip_extended_manifest() to check and strip

Signed-off-by: Shreyas NC <shreyas.nc@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>