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/wcd9xxx-core-init.c

@@ -0,0 +1,55 @@
+/* Copyright (c) 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.
+ */
+
+#include <linux/module.h>
+#include "msm-cdc-pinctrl.h"
+#include "wcd9xxx-irq.h"
+#include "core.h"
+
+#define NUM_DRIVERS_REG_RET 3
+
+static int __init wcd9xxx_core_init(void)
+{
+	int ret[NUM_DRIVERS_REG_RET] = {0};
+	int i = 0;
+
+	ret[0] = msm_cdc_pinctrl_drv_init();
+	if (ret[0])
+		pr_err("%s: Failed init pinctrl drv: %d\n", __func__, ret[0]);
+
+	ret[1] = wcd9xxx_irq_drv_init();
+	if (ret[1])
+		pr_err("%s: Failed init irq drv: %d\n", __func__, ret[1]);
+
+	ret[2] = wcd9xxx_init();
+	if (ret[2])
+		pr_err("%s: Failed wcd core drv: %d\n", __func__, ret[2]);
+
+	for (i = 0; i < NUM_DRIVERS_REG_RET; i++) {
+		if (ret[i])
+			return ret[i];
+	}
+
+	return 0;
+}
+module_init(wcd9xxx_core_init);
+
+static void __exit wcd9xxx_core_exit(void)
+{
+	wcd9xxx_exit();
+	wcd9xxx_irq_drv_exit();
+	msm_cdc_pinctrl_drv_exit();
+}
+module_exit(wcd9xxx_core_exit);
+
+MODULE_DESCRIPTION("WCD9XXX CODEC core init driver");
+MODULE_LICENSE("GPL v2");