audio: module-adapter: fix SRC DP regression

A recent module-adapter feature addition broke SRC DP support. Fix it
by adding a test for incomplete initialization data.

Signed-off-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>

Author: lyakh

src/audio/module_adapter/module_adapter_ipc4.c

@@ -159,7 +159,8 @@ int module_adapter_init_data(struct comp_dev *dev,
 		}
 	}
 
-	if (!config->ipc_extended_init) {
+	if (!config->ipc_extended_init ||
+	    (!dst->ext_data->dp_data && !dst->ext_data->module_data)) {
 		dst->init_data = cfg; /* legacy API */
 		dst->avail = true;
 	}