machine: make gosched available to machine package

src/machine/runtime.go

@@ -0,0 +1,13 @@
+package machine
+
+import (
+	_ "unsafe"
+)
+
+//
+// This file provides access to runtime package that would not otherwise
+// be permitted due to linker dependencies.
+//
+
+//go:linkname gosched runtime.Gosched
+func gosched()