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/Android.bp b/Android.bp
index 54fd0c2..d6f1090 100644
--- a/Android.bp
+++ b/Android.bp
@@ -339,6 +339,7 @@
         "metrics_reporter_stub.cc",
         "metrics_utils.cc",
         "network_selector_stub.cc",
+        "sideload_logging_android.cc",
         "sideload_main.cc",
         "update_attempter_android.cc",
         "update_boot_flags_action.cc",