Setup android-base logging in sideload.

Some depending modules (libsnapshot, etc.) uses logging library
from libbase. Make sure those logs are dumped to /tmp/recovery.log.

Test: sideload and view /tmp/recovery.log
Change-Id: I1a27f6345482928684fb9e22494783d2c57016b0
diff --git a/sideload_main.cc b/sideload_main.cc
index 818fa5c..29d6f2c 100644
--- a/sideload_main.cc
+++ b/sideload_main.cc
@@ -36,6 +36,7 @@
 #include "update_engine/common/subprocess.h"
 #include "update_engine/common/terminator.h"
 #include "update_engine/common/utils.h"
+#include "update_engine/sideload_logging_android.h"
 #include "update_engine/update_attempter_android.h"
 
 using std::string;
@@ -196,6 +197,7 @@
 
   chromeos_update_engine::Terminator::Init();
   chromeos_update_engine::SetupLogging();
+  chromeos_update_engine::SetupAndroidLogging(argv);
   brillo::FlagHelper::Init(argc, argv, "Update Engine Sideload");
 
   LOG(INFO) << "Update Engine Sideloading starting";