sanders: add ssr and sound trigger headers

* Fix audio HAL

include/surround_rec_interface.h

@@ -0,0 +1,32 @@
+/*
+ * Extrapolated / reversed header for SSR
+ */
+
+#ifndef _SURROUND_REC_INTERFACE_H_
+#define _SURROUND_REC_INTERFACE_H_
+
+typedef char *get_param(void *arg);
+typedef void set_param(void *arg, const char *arg1);
+
+typedef struct get_param_data {
+    const char *name;
+    get_param *get_param_fn;
+} get_param_data_t;
+
+typedef struct set_param_data {
+    const char *name;
+    set_param *set_param_fn;
+} set_param_data_t;
+
+const get_param_data_t* surround_rec_get_get_param_data(void);
+
+const set_param_data_t* surround_rec_get_set_param_data(void);
+
+int surround_rec_init(void **arg, int arg1, int arg2, int arg3,
+                      int arg4, const char *arg5);
+
+void surround_rec_deinit(void *arg);
+
+void surround_rec_process(void *arg, const int16_t *arg1, int16_t *arg2);
+
+#endif /* #ifndef _SURROUND_REC_INTERFACE_H_ */