audio-lnx: Rename folders to new flat structure.

Kernel audio drivers can be categorised into below folders.
asoc - ALSA based drivers,
asoc/codecs - codec drivers,
ipc - APR IPC communication drivers,
dsp - DSP low level drivers/Audio ION/ADSP Loader,
dsp/codecs - Native encoders and decoders,
soc - SoC based drivers(pinctrl/regmap/soundwire)

Restructure drivers to above folder format.
Include directories also follow above format.

Change-Id: I8fa0857baaacd47db126fb5c1f1f5ed7e886dbc0
Signed-off-by: Laxminath Kasam <lkasam@codeaurora.org>

asoc/codecs/wcd-dsp-utils.h

@@ -0,0 +1,51 @@
+/*
+ * Copyright (c) 2016-2017, The Linux Foundation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __WCD_DSP_UTILS_H__
+#define __WCD_DSP_UTILS_H__
+
+#define WDSP_IMG_NAME_LEN_MAX    64
+
+#define WDSP_ELF_FLAG_EXECUTE    (1 << 0)
+#define WDSP_ELF_FLAG_WRITE      (1 << 1)
+#define WDSP_ELF_FLAG_READ       (1 << 2)
+
+#define WDSP_ELF_FLAG_RE (WDSP_ELF_FLAG_READ | WDSP_ELF_FLAG_EXECUTE)
+
+struct wdsp_img_segment {
+
+	/* Firmware for the slit image */
+	const struct firmware *split_fw;
+
+	/* Name of the split firmware file */
+	char split_fname[WDSP_IMG_NAME_LEN_MAX];
+
+	/* Address where the segment is to be loaded */
+	u32 load_addr;
+
+	/* Buffer to hold the data to be loaded */
+	u8 *data;
+
+	/* Size of the data to be loaded */
+	size_t size;
+
+	/* List node pointing to next segment */
+	struct list_head list;
+};
+
+int wdsp_get_segment_list(struct device *dev, const char *img_fname,
+			  unsigned int segment_type, struct list_head *seg_list,
+			  u32 *entry_point);
+void wdsp_flush_segment_list(struct list_head *seg_list);
+
+#endif /* __WCD_DSP_UTILS_H__ */