audio: hal: add DSP clock recovery support

-Changes to add DSP clock recovery support

Conflicts:
        qahw_api/test/qahw_playback_test.c
	    hal/audio_extn/utils.c

CRs-Fixed: 2036937
Change-Id: I32e18e415c4a7dfdc7ae13d0e50c1ca76d739cc0
diff --git a/hal/platform_api.h b/hal/platform_api.h
index 1b6c1f1..b7c4598 100644
--- a/hal/platform_api.h
+++ b/hal/platform_api.h
@@ -144,6 +144,7 @@
 int platform_set_snd_device_backend(snd_device_t snd_device, const char * backend,
                                     const char * hw_interface);
 int platform_get_snd_device_backend_index(snd_device_t device);
+const char * platform_get_snd_device_backend_interface(snd_device_t device);
 
 /* From platform_info.c */
 int platform_info_init(const char *filename, void *, caller_t);