ASoC: Intel: Skylake: modify skl_get_dsp_ops()

To query the ops used for a platform, we use skl_get_dsp_ops() which return
index and then we load the ops.

Rather than this return the ops, this way it cna be used later to query the
ops in rest of the driver.

Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/sound/soc/intel/skylake/skl.h b/sound/soc/intel/skylake/skl.h
index 9064e5b..c3538f8 100644
--- a/sound/soc/intel/skylake/skl.h
+++ b/sound/soc/intel/skylake/skl.h
@@ -123,4 +123,5 @@
 int skl_suspend_dsp(struct skl *skl);
 int skl_resume_dsp(struct skl *skl);
 void skl_cleanup_resources(struct skl *skl);
+const struct skl_dsp_ops *skl_get_dsp_ops(int pci_id);
 #endif /* __SOUND_SOC_SKL_H */