ASoC: SOF: Add IPC4 private header

Add a struct sof_ipc4_fw_data to hold the firmware module data and
manifest FW header offset.
The FW reports data about the modules supported by the base FW in its
manifest and the FW header offset is platform dependent information.

This structure will be allocated when the ops are initialized for each
platform and populated when the FW is loaded.
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20220511171648.1622993-3-ranjani.sridharan@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/sof/ipc4-priv.h

+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */
+/*
+ * This file is provided under a dual BSD/GPLv2 license.  When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * Copyright(c) 2022 Intel Corporation. All rights reserved.
+ */
+
+#ifndef __SOUND_SOC_SOF_IPC4_PRIV_H
+#define __SOUND_SOC_SOF_IPC4_PRIV_H
+
+#include <linux/idr.h>
+#include "sof-priv.h"
+
+/**
+ * struct sof_ipc4_fw_data - IPC4-specific data
+ * @manifest_fw_hdr_offset: FW header offset in the manifest
+ * @num_fw_modules : Number of modules in base FW
+ * @fw_modules: Array of base FW modules
+ */
+struct sof_ipc4_fw_data {
+	u32 manifest_fw_hdr_offset;
+	int num_fw_modules;
+	void *fw_modules;
+};
+
+#endif