[TestLldbGdbServer] Up sleep duration to 1min in the inferior thread_func.

[sivachandra]

Summary

The current sleep duration is not sufficient for Android.

[[ Its a completely different investigation as to why Android needs longer

sleep durations for this test. ]]

[sivachandra]

Increase the sleep duration instead of making it infinite per offline discussion.

test/tools/lldb-server/main.cpp

if (g_threads_do_segfault)
 
     pthread_mutex_lock (&g_print_mutex);
     printf ("thread ");
     print_thread_id ();
     printf (": past SIGSEGV\n");
     pthread_mutex_unlock (&g_print_mutex);
   }
 
+  while (1)
+  {
     int sleep_seconds_remaining = 5;
     while (sleep_seconds_remaining > 0)
     {
       sleep_seconds_remaining = sleep (sleep_seconds_remaining);
     }
+  }
 
   return nullptr;
 }
 
 int main (int argc, char **argv)
 {
 #if defined(__linux__)
     // Immediately enable any ptracer so that we can allow the stub attach