FS#9213 - Fix for audio dropout after startup

Original Patch by Martin Buck
Updated by Igor Poretsky

apps/tagcache.c

@@ -4302,6 +4302,8 @@ static bool check_deleted_files(void)
             logf("-> %s / %ld", buf, tfe.tag_length);
             delete_entry(tfe.idx_id);
         }
+
+        do_timed_yield();
     }
     
     close(fd);

docs/CREDITS

@@ -682,6 +682,7 @@ Yangyong Wu
 Andy Potter
 Stefan Waigand
 Guo Zhong Kai
+Martin Buck
 
 The libmad team
 The wavpack team