binder: Change the error message when pm is not available. am: f82fbdc411

Change-Id: I016d211e28393bdf4322b40a3c939532ba8a3f48
diff --git a/src/binder/package_manager_remote.cc b/src/binder/package_manager_remote.cc
index 7cca2cf..bd20674 100644
--- a/src/binder/package_manager_remote.cc
+++ b/src/binder/package_manager_remote.cc
@@ -113,7 +113,9 @@
     if (count * interval >= timeout) {
       LOG(FATAL) << "Fail to create version map in "
                  << timeout.count()
-                 << " seconds.";
+                 << " milliseconds."
+                 << " Reason: Failed to connect to package manager service."
+                 << " Is system_server down?";
       return false;
     }
   }