modules: adapter: make max module sinks/source a Kconfig setting

Currently max number of connected sources and sinks is hard coded.
Make this Kconfig to support different connections counts and
validate the count is within limits.

Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>

Author: lrgirdwo

src/audio/Kconfig

@@ -72,6 +72,13 @@ config IPC4_GATEWAY
 	  host and DSP without using DMA: via memory window (audio payload) and
 	  IPC4 messages (set/get/flush commands).
 
+config MODULE_MAX_CONNECTIONS
+	int "Module maximum number of connected sink/source modules"
+	default 8
+	help
+	  Specifies the maximum number of sink and source connections a module
+	  may have to other modules.
+
 rsource "up_down_mixer/Kconfig"
 
 config COMP_BLOB

src/audio/module_adapter/module_adapter.c

@@ -272,6 +272,12 @@ int module_adapter_prepare(struct comp_dev *dev)
 		comp_err(dev, "module_adapter_prepare(): no source and sink buffers connected!");
 		return -EINVAL;
 	}
+	if (mod->num_of_sources > CONFIG_MODULE_MAX_CONNECTIONS ||
+	    mod->num_of_sinks > CONFIG_MODULE_MAX_CONNECTIONS) {
+		comp_err(dev, "module_adapter_prepare(): too many connected sinks %d or sources %d!",
+			 mod->num_of_sinks, mod->num_of_sources);
+		return -EINVAL;
+	}
 
 	/* check processing mode */
 	if (IS_PROCESSING_MODE_AUDIO_STREAM(mod) && mod->max_sources > 1 && mod->max_sinks > 1) {

src/include/module/module/base.h

@@ -101,8 +101,8 @@ struct processing_module {
 	uint32_t num_of_sinks;
 
 	/* sink and source handlers for the module */
-	struct sof_sink *sinks[MODULE_MAX_SOURCES];
-	struct sof_source *sources[MODULE_MAX_SOURCES];
+	struct sof_sink *sinks[CONFIG_MODULE_MAX_CONNECTIONS];
+	struct sof_source *sources[CONFIG_MODULE_MAX_CONNECTIONS];
 
 	/* this is used in case of raw data or audio_stream mode
 	 * number of buffers described by fields:

src/include/sof/audio/module_adapter/module/generic.h

@@ -28,7 +28,6 @@
 #define IS_PROCESSING_MODE_SINK_SOURCE(mod) ((mod)->proc_type == MODULE_PROCESS_TYPE_SOURCE_SINK)
 
 #define MAX_BLOB_SIZE 8192
-#define MODULE_MAX_SOURCES 8
 
 #if CONFIG_IPC_MAJOR_4
 #define IPC_MOD_CMD(v)