ASoC: Intel: cnl: Unstatify common ipc functions

Common ipc functions can be reused for cnl, so make them non-static.

Signed-off-by: Guneshwor Singh <guneshwor.o.singh@intel.com>
Acked-By: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/intel/skylake/skl-sst-ipc.h

@@ -212,4 +212,10 @@ void skl_ipc_free(struct sst_generic_ipc *ipc);
 int skl_ipc_init(struct device *dev, struct skl_sst *skl);
 void skl_clear_module_cnt(struct sst_dsp *ctx);
 
+void skl_ipc_process_reply(struct sst_generic_ipc *ipc,
+		struct skl_ipc_header header);
+int skl_ipc_process_notification(struct sst_generic_ipc *ipc,
+		struct skl_ipc_header header);
+void skl_ipc_tx_data_copy(struct ipc_message *msg, char *tx_data,
+		size_t tx_size);
 #endif /* __SKL_IPC_H */