Replace debug_suspend_count with user_code_suspend_count in log

The debug_suspend_count is not used anymore. Remove logging it from
suspend_log and instead put the user_code_suspend_count that is more
generally relevant.

Test: ./test.py --host
Change-Id: I30d2c51d80ebaf83d12375c26ea37938ff9046f4
diff --git a/runtime/thread.cc b/runtime/thread.cc
index c831f3e..7009a7c 100644
--- a/runtime/thread.cc
+++ b/runtime/thread.cc
@@ -1899,7 +1899,7 @@
     auto suspend_log_fn = [&]() REQUIRES(Locks::thread_suspend_count_lock_) {
       os << "  | group=\"" << group_name << "\""
          << " sCount=" << thread->tls32_.suspend_count
-         << " dsCount=" << thread->tls32_.debug_suspend_count
+         << " ucsCount=" << thread->tls32_.user_code_suspend_count
          << " flags=" << thread->tls32_.state_and_flags.as_struct.flags
          << " obj=" << reinterpret_cast<void*>(thread->tlsPtr_.opeer)
          << " self=" << reinterpret_cast<const void*>(thread) << "\n";