m/installer: log to tty0 and ttyS0

Without this we only log to whatever the default system console is.

Change-Id: I64b43f8617f3b8752332209b511ea470848c4481
Reviewed-on: https://review.monogon.dev/c/monogon/+/1381
Tested-by: Jenkins CI
Reviewed-by: Leopold Schabel <leo@monogon.tech>
diff --git a/metropolis/installer/BUILD.bazel b/metropolis/installer/BUILD.bazel
index 6e1f1f0..f3b6d1e 100644
--- a/metropolis/installer/BUILD.bazel
+++ b/metropolis/installer/BUILD.bazel
@@ -5,7 +5,10 @@
 
 go_library(
     name = "installer_lib",
-    srcs = ["main.go"],
+    srcs = [
+        "log.go",
+        "main.go",
+    ],
     importpath = "source.monogon.dev/metropolis/installer",
     visibility = ["//visibility:private"],
     deps = [