treewide: move build helper to more fitting places

Change-Id: I3d0cfe9283222d403ae369ec9db09201ad511e15
Reviewed-on: https://review.monogon.dev/c/monogon/+/3327
Reviewed-by: Serge Bazanski <serge@monogon.tech>
Tested-by: Jenkins CI
diff --git a/osbase/test/ktest/BUILD.bazel b/osbase/test/ktest/BUILD.bazel
index 16612e5..733d695 100644
--- a/osbase/test/ktest/BUILD.bazel
+++ b/osbase/test/ktest/BUILD.bazel
@@ -1,5 +1,5 @@
 load("@io_bazel_rules_go//go:def.bzl", "go_binary", "go_library")
-load("//metropolis/node/build/kconfig-patcher:kconfig-patcher.bzl", "kconfig_patch")
+load("//osbase/build/kconfig-patcher:kconfig-patcher.bzl", "kconfig_patch")
 load("//third_party/linux:def.bzl", "linux_image")
 
 go_library(