aws: Create "setup" user to run setup

Amazon does not permit that a user logs in as root directly.
Instead they insist on using sudo.

Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>

src/setup/run-setup

@@ -0,0 +1,4 @@
+#!/bin/bash
+
+# Runs setup and tries to gain root privileges
+exec sudo setup