node/core: add sysctls

Change-Id: I47b0d639a62f73f134430c5164a35eef2b5622d7
Reviewed-on: https://review.monogon.dev/c/monogon/+/2273
Tested-by: Jenkins CI
Reviewed-by: Lorenz Brun <lorenz@monogon.tech>
diff --git a/metropolis/node/core/BUILD.bazel b/metropolis/node/core/BUILD.bazel
index e8367f9..9043d8e 100644
--- a/metropolis/node/core/BUILD.bazel
+++ b/metropolis/node/core/BUILD.bazel
@@ -9,6 +9,7 @@
         "nodeparams.go",
         "panichandler.go",
         "pstore.go",
+        "sysctl.go",
     ] + select({
         "//metropolis/node:debug_build": [
             "debug_service_enabled.go",
@@ -36,6 +37,7 @@
         "//metropolis/pkg/logtree",
         "//metropolis/pkg/pstore",
         "//metropolis/pkg/supervisor",
+        "//metropolis/pkg/sysctl",
         "//metropolis/pkg/tpm",
         "//metropolis/proto/api",
         "@com_github_cenkalti_backoff_v4//:backoff",