Add mbtk_source git commit info

Change-Id: I9867613657db269bba81d28c4b3712062ae41bdd
diff --git a/mbtk/libmbtk_audio/src/mbtk_pcm_stream.c b/mbtk/libmbtk_audio/src/mbtk_pcm_stream.c
index a08338f..9f2336d 100755
--- a/mbtk/libmbtk_audio/src/mbtk_pcm_stream.c
+++ b/mbtk/libmbtk_audio/src/mbtk_pcm_stream.c
@@ -667,7 +667,7 @@
     int value = 1;
     struct mopen_audio_t *aud_hdl = NULL;
     int ret;
-    
+
     if(internal_hdl)
     {
         printf("Audio device inited\n");
@@ -740,7 +740,7 @@
     if (NULL == dev_hdl || NULL == internal_hdl)
         return -1;
 
- 
+
     LOGD("mbtk_audio_play_file_new()  dev_hdl:%p\n", dev_hdl);
 
     if(AUDIO_RUNNING == pcxt->state)
@@ -768,7 +768,7 @@
       //   printf("%s:read : %d bytes\n", __FUNCTION__, res);
         if(res == 0 || res < 0)
         {
-             LOGD("read:[%d]", res); 
+             LOGD("read:[%d]", res);
             break;
         }
 
@@ -860,7 +860,7 @@
 
         if(read_size > len)
         {
-         //    printf(">[%d]\n", read_size); 
+         //    printf(">[%d]\n", read_size);
             break;
         }
 
@@ -886,7 +886,7 @@
 
         if(read_size == len)
         {
-         //    printf("=[%d]", read_size); 
+         //    printf("=[%d]", read_size);
             break;
         }
 
@@ -897,14 +897,14 @@
             {
                 sprintf(cmd, "ubus call audio_if config_dspgain \"{\'type\':1, \'gain\':%d}\"", gain);
                 system(cmd);
-            
+
                 flay_flag = FALSE;
                 usleep(80000);
             }
         }
 
     }
-    
+
     if(pcxt->state != AUDIO_STOP)
     {
         mbtk_audio_set_status_new(dev_hdl, AUDIO_OPEN);
@@ -942,4 +942,8 @@
     return 0;
 }
 
+void mbtk_audio_lib_info_print()
+{
+    MBTK_SOURCE_INFO_PRINT("mbtk_audio_lib");
+}