hal: Fix usecase transcode loopback usecase id

Fix transcode loopback rx usecase id

Change-Id: I308940d5490d3685f6ac57cf3f9a0692286fd8e3
diff --git a/hal/audio_extn/hw_loopback.c b/hal/audio_extn/hw_loopback.c
index ebf41db..bc04a14 100644
--- a/hal/audio_extn/hw_loopback.c
+++ b/hal/audio_extn/hw_loopback.c
@@ -264,7 +264,7 @@
     struct stream_inout *inout =  &active_loopback_patch->patch_stream;
     struct audio_port_config *source_patch_config = &active_loopback_patch->
                                                     loopback_source;
-    int32_t pcm_dev_asm_rx_id = platform_get_pcm_device_id(USECASE_AUDIO_TRANSCODE_LOOPBACK,
+    int32_t pcm_dev_asm_rx_id = platform_get_pcm_device_id(USECASE_AUDIO_TRANSCODE_LOOPBACK_RX,
                                                            PCM_PLAYBACK);
 
     /* Close the PCM devices */