aver-updater: rename LoggingSettings.log_file

It will be renamed to log_file_path.

BUG=chromium:1094927
TEST=cros_run_unit_tests --board=fizz --packages aver-updater

Change-Id: Iafc8c5cd5aff9e0697ed8314c9efbddee10c171e
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/aver-updater/+/2411587
Commit-Queue: Qijiang Fan <fqj@google.com>
Tested-by: Grace Cham <hscham@chromium.org>
Reviewed-by: Qijiang Fan <fqj@google.com>
Reviewed-by: Joe Tessler <jrt@chromium.org>
diff --git a/src/main.cc b/src/main.cc
index ff723cd..79f70bb 100644
--- a/src/main.cc
+++ b/src/main.cc
@@ -29,7 +29,11 @@
   } else {
     logging::LoggingSettings logging_settings;
     logging_settings.logging_dest = logging::LOG_TO_FILE;
+#if BASE_VER < 780000
     logging_settings.log_file = log_file.c_str();
+#else
+    logging_settings.log_file_path = log_file.c_str();
+#endif
     logging_settings.lock_log = logging::DONT_LOCK_LOG_FILE;
     logging::InitLogging(logging_settings);
   }
@@ -172,4 +176,4 @@
     LOG(INFO) << "Done. Updated firmware successfully.";
   }
   return 0;
-}
\ No newline at end of file
+}