audio-lnx: Initial change for techpack of audio drivers.

Add snapshot for audio drivers for SDM targets. The code is
migrated from msm-4.9 kernel at the below cutoff -

(74ff856e8d6: "net: ipc_router: Add dynamic enable/disable
wakeup source feature")

This changes are done for new techpack addition
for audio kernel. Migrate all audio kernel drivers
to this techpack.

Change-Id: I33d580af3ba86a5cb777583efc5d4cdaf2882d93
Signed-off-by: Asish Bhattacharya <asishb@codeaurora.org>

include/linux/mfd/msm-cdc-pinctrl.h

@@ -0,0 +1,49 @@
+/* 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 __MFD_CDC_PINCTRL_H_
+#define __MFD_CDC_PINCTRL_H_
+
+#include <linux/types.h>
+#include <linux/of.h>
+
+#if IS_ENABLED(CONFIG_MSM_CDC_PINCTRL)
+extern int msm_cdc_pinctrl_select_sleep_state(struct device_node *np);
+extern int msm_cdc_pinctrl_select_active_state(struct device_node *np);
+extern bool msm_cdc_pinctrl_get_state(struct device_node *np);
+extern int msm_cdc_get_gpio_state(struct device_node *np);
+int msm_cdc_pinctrl_drv_init(void);
+void msm_cdc_pinctrl_drv_exit(void);
+
+#else
+int msm_cdc_pinctrl_select_sleep_state(struct device_node *np)
+{
+	return 0;
+}
+int msm_cdc_pinctrl_select_active_state(struct device_node *np)
+{
+	return 0;
+}
+int msm_cdc_get_gpio_state(struct device_node *np)
+{
+	return 0;
+}
+int msm_cdc_pinctrl_drv_init(void)
+{
+	return 0;
+}
+void msm_cdc_pinctrl_drv_exit(void)
+{
+}
+#endif
+
+#endif